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First Pictures Taken Of Extrasolar Planets

First Pictures Taken Of Extrasolar Planets
posted by jason's_planet on Nov 13, 2008 - 32 comments

Monolith delivery?

Discovered just last night by the Catalina Sky Survey at Mount Lemmon Observatory, asteroid 2008 TC will enter the upper atmosphere (and should explode spectacularly) over Northern Sudan in around 30 minutes.
posted by JaredSeth on Oct 6, 2008 - 45 comments

Aleksander Wolszczan

In 1992, Aleksander Wolszczan discovered the first planets outside our solar system. Now, the Penn State professor been accused of spying for SB, the Polish Secret Police. He calls it a "smear campaign."
posted by up in the old hotel on Sep 25, 2008 - 6 comments

Dark Flow

Mysterious New 'Dark Flow' Discovered in Space. "As if the mysteries of dark matter and dark energy weren't vexing enough, another baffling cosmic puzzle has been discovered. Patches of matter in the universe seem to be moving at very high speeds and in a uniform direction that can't be explained by any of the known gravitational forces in the observable universe. Astronomers are calling the phenomenon 'dark flow.' The stuff that's pulling this matter must be outside the observable universe, researchers conclude." [more inside]
posted by homunculus on Sep 25, 2008 - 73 comments

"Women hold up half the sky"--Chinese proverb

Pickering and the Female Computers. In 1881, Edward Pickering, the director of the Harvard College Observatory, became so impatient with a male lab assistant’s work that he famously declared his maid could do a better job. Rather than take offense, his 24-year-old maid, Williamina Fleming, instead took him up on the offer. She ended up working at the Observatory for the next 30 years, supervising the tedious work of cataloging photographic plates, but also discovering variable stars and novae, helping to develop a classification system—and, perhaps even more importantly, hiring nearly 40 female assistants, many of whom went on to have distinguished scientific careers. [more inside]
posted by mothershock on Sep 20, 2008 - 27 comments

twilight zone, the edge of light

The "terminator" is the dividing line between day and night as seen from on high. This shadow line is diffuse and shows the gradual transition to darkness we experience as twilight. [more inside]
posted by nickyskye on Sep 16, 2008 - 44 comments

Universe Sandbox

An Interactive Space Simulator "Smash planets together, introduce rogue stars, and build new worlds from spinning discs of debris. Fire a moon into a planet or destroy everything you've created with a super massive black hole. You can simulate and interact with our solar system: the 8 planets,160+ moons, and hundereds of asteroids, the nearest 1000 stars to our Sun, and our local group of galaxies." [31Mb, Windows only, sorry, but see inside for similar Mac and Linux apps] [more inside]
posted by stavrosthewonderchicken on Jul 11, 2008 - 27 comments

GalaxyZoo First Anniversary

Today is the first birthday of Galaxy Zoo. The largest astronomical collaboration in history, Galaxy Zoo has enlisted nearly a 150,000 volunteers to help classify over a million galaxies and released four science papers. It's made a number of interesting discoveries such as a large number of ring galaxies, Hanny’s Voorwerp, and a large number of visually (but not physically) overlapping galaxies. You can help classify galaxies or classify galaxy mergers. Don't miss the visual catalog of over 250 Objects of the Day--pretty much every one of them stunning.
posted by flug on Jul 11, 2008 - 5 comments

Music of the spheres

Earth is not a quiet planet. It transmits a rather hideous sound [flash] into space that is 10,000 times greater in strength than any man-made radio transmission. The Earth also quietly hums with seismic Love Waves (hear them), while the Magnetosphere is alive will all sorts of sounds (check out the creepy-sounding Chorus Emissions). Also, stars sing out in middle C before they explode as supernovae, and the Perseus Cluster black hole has droned a B-flat for the past 2.5 billion years.
posted by blahblahblah on Jul 2, 2008 - 36 comments

Liquid mirror telescopes

A liquid mirror telescope is made by spinning a reflective fluid, such as mercury, at a constant rate. This rotation produces a parabolic surface, which is an ideal shape for a telescope mirror. (You can try this yourself.) While these mirrors can be built to be large and orders of magnitude cheaper than solid mirrors, they have the disadvantage that they can only look straight up. Creating mirrors this way is not new; they have a history [.ps] that dates back to Newton. However, they have recently regained attention as the technology behind proposals to build an enormous (20m+) telescope on the moon. (A less technical treatment here.)
posted by Upton O'Good on Jul 1, 2008 - 36 comments

KA-BOOM!!!!

The Tunguska Event. A century ago, something exploded over Russia... [more inside]
posted by fearfulsymmetry on Jul 1, 2008 - 22 comments

Fire-Wielding Beavers and Man-Bats, Oh My!

The Great Moon Hoax of 1835. During the last week of August 1835, the New York Sun published a six-part article about the discovery - purportedly by renowned astronomer Sir John Herschel - of fantastical life on the moon, including herds of bison, blue unicorns, "a primitive tribe of hut-dwelling, fire-wielding biped beavers, and a race of winged humans living in pastoral harmony around a mysterious, golden-roofed temple." The public's reaction was a mix of credulity and skepticism. Read the full text of the serialized articles: Part 1, Part 2, Part 3, Part 4, Part 5, Part 6.
posted by amyms on Jun 24, 2008 - 37 comments

Not the Ford Galaxy

Five years and 800,000 images went into producing a 4 gigapixel mosaic image of the galactic plane, which when printed out is 180 feet long. But it has been made browser-sized by GLIMPSE, the Galactic Legacy Infrared Mid-Plane Survey Extraordinaire, the research group which, along with MIPSGAL, created the image: A Glimpse of the Milky Way.
posted by Kronos_to_Earth on Jun 5, 2008 - 14 comments

Telescope making

Mark VandeWettering makes telescopes, and has written a set of guides for those who would like to build their own. Francis O'Reilly has made a similar set of guides, except as a series of videos.
posted by Upton O'Good on Jun 4, 2008 - 13 comments

"Thus oft a struggle to escape - But lands us in a still worse scrape"

page2rss is a simple, effective RSS scraper. For instance, here's an RSS feed for Astronomy Picture of the Day. A powerful feature: "You can add a button to your browser's bookmarks toolbar that will create Page2RSS feed for the page you are currently viewing."
posted by nthdegx on Jun 2, 2008 - 12 comments

“A most dread portent took place, the sun gave forth its light without brightness.”

The Atlantic has an interesting article about the high probability of "space rocks" hitting the earth, possibly as high as a 1 in 10 chance of a major catastrophe each century. Not a new theme, but the article has some new developments suggesting it is more common than once thought. Includes a 10 minute video.
posted by stbalbach on May 30, 2008 - 19 comments

Orders of Magnitude

Leave the planet to travel into the largest structures of the universe, then plunge into the tiniest. Forty two orders of magnitude in thirty six minutes.... Cosmic Voyage. (single link Google video via) [more inside]
posted by Kronos_to_Earth on May 30, 2008 - 11 comments

A Star is Unborn

“Here was an object brand new. At first we didn’t recognize it.” Dr. Alicia Soderberg on the discovery of Supernova 2008D, using the Swift satellite telescope....
posted by Kronos_to_Earth on May 21, 2008 - 15 comments

The Alien is my Brother

Vatican's chief astronomer states that belief in alien life does not conradict faith in God. Fr. José Gabriel Funes, a Jesuit preist and chief astronomer for the Vatican, stated in an interview in L'Osservatore Romano, the Vatican's official newspaper, that, "Just as we consider earthly creatures as 'a brother,' and 'sister,' why should we not talk about an 'extraterrestrial brother'? It would still be part of creation." [more inside]
posted by Snyder on May 14, 2008 - 72 comments

Microsoft's WorldWide Telescope

Microsoft's much anticipated WorldWide Telescope was released today (in the past hour actually). Article in New York Times and TED speech.
posted by stbalbach on May 12, 2008 - 136 comments

Gravitic Mayhem

" It looks as if our Milky Way will be subsumed into its giant neighbour, the Andromeda galaxy...." A (not so) little trove of images of galactic collisions has been released to mark the 18th anniversary of the Hubble telescope's launch. Gravitic Mayhem. (via)
posted by Kronos_to_Earth on Apr 24, 2008 - 21 comments

The Comet Hunters

The Story of a Comet Hunter (see also his web page which contains a link to the story of his discover of Comet Seki-Lines in 1962). Visual comet hunting has a long and intriguing history. Today visual hunters are adapting their ways to make visual discoveries in an age of automated searches. The amateur can still win. Now, ANYONE can discover a comet(?) Or perhaps 1000. A Guide for SOHO Comet Hunters. More SOHO and Sungrazing Comet Links. [Previously]
posted by spock on Apr 18, 2008 - 2 comments

Stars In Your Eyes

See Saturn this Saturday April 12 is the second annual International Sidewalk Astronomy Night, a worldwide event coordinated by the Sidewalk Astronomers. The group, founded in 1968 by John Dobson (subject of this documentary), is dedicated to a sort of guerrilla astronomy -- experienced stargeeks bringing their really good telescopes out to places where people are. So even on your way to the bars, the shows, and the honky-tonk you can see stuff like this and this - like these people did.
posted by Miko on Apr 10, 2008 - 16 comments

You're not alone

Many planets have been found circling other stars, but the prevailing search techniques turn up results encouraging but bizarre. (encouraging, previously) Gravitational micro-lensing has made it possible to OGLE a solar system much like our own.... You're not alone.
posted by Kronos_to_Earth on Apr 6, 2008 - 9 comments

Gamma Ray Bursts - they're neat

How far can the naked eye see? About 7.5 billion light-years. On March 19th, a Gamma Ray Burst was noticed by NASA's Swift satellite and given the name GRB 080319B. It left an optical afterglow estimated at +5 apparent magnitude for 30 seconds, about that of an average star. (Sadly, no one was looking at the area with an optical telescope at that exact time.) Read the original Burst Alert, including the email address of the Burst Advocate, here. [more inside]
posted by ikkyu2 on Mar 23, 2008 - 37 comments

UK May Shut Down Jodrell Bank Observatory

Jodrell Bank observatory may shut down according to a UK funding proposal (via Bad Astronomy). The observatory is comprised of several radio telescopes including Lovell, the third largest steerable radio telescope in the world. The proposed budget cuts would save the UK £2.5 million per year. Perhaps Lovell can be converted (again) to an outdoor movie screen.
posted by McLir on Mar 6, 2008 - 12 comments

The World at Night

The World at Night is a collection of astrophotography from around the world.
posted by Upton O'Good on Jan 29, 2008 - 9 comments

Sky Writer : Robert Burnham Jr.

Over 30 years ago, Robert Burnham Jr. struggled to get his astronomical (in more ways than one) three volume work published. Burnham's Celestial Handbook: An Observer's Guide to the Universe Beyond the Solar System "remains a sort of real-life hitchhiker's guide to the galaxy, a compendium with something to say about nearly every cosmic destination worth visiting. . . It is rarely compared to other books because there simply is none other like it." It remains a beloved and relevant book among star-gazers today. Yet few know much about the life of the author, or of his sad and lonely demise: Sky Writer.
posted by spock on Jan 28, 2008 - 20 comments

Run away! Run away!

Will asteroid 2007 TU24 devastate our planet due to "magnetic reconnection"? Bad Astronomy's Phil Plait doesn't think so.
posted by starkeffect on Jan 28, 2008 - 43 comments

AstroPorn

The images produced by today's ordinary amateur astrophotographer rival those produced by the big observatories only a decade or two ago. (This "Two Comets" image alone is worth a look. <-Rollover for close-ups of the comets.) You can get very good results with far simpler equipment, however - even with "old-fashioned FILM". Looking for the BEST skies for astrophotography? If you aren't a weenie, you might try Dome C, Antarctica. [more inside]
posted by spock on Jan 3, 2008 - 19 comments

Biggest Diamond

The biggest diamond in the world is insignificant, compared with the biggest diamond in the galaxy. Discovered in 2004, the Center For Astrophysics suggests that you should use the galactic one "to impress your favorite lady." Here's information about how diamonds are formed, and where they are found.
posted by Kirth Gerson on Jan 1, 2008 - 22 comments

free Yale courses online

Open Yale Courses provides free and open access to seven introductory courses taught by distinguished teachers and scholars at Yale University:Astronomy, English, Philosophy, Physics, Political Science, Psychology, Religious Studies: a full set of class lectures produced in high-quality video, syllabi, suggested readings, and problem sets. [more inside]
posted by nickyskye on Dec 14, 2007 - 30 comments

Astronomy Pictures

Bad Astronomy's Top Ten Astronomy Pictures of 2007.
posted by homunculus on Dec 13, 2007 - 36 comments

Historic Celestial Atlas Illustrations

In 1627, Schiller's Coelum Stellatum Christianum attempted to replace the mythical constellation figures with Christian figures. More from the Linda Hall Library Digital Services Unit. Art, illustration, and astronomy aficionados will appreciate the beauty of historic celestial atlas illustrations: Bayer's Uranometria 1603 (also the 1661 Edition), Flamsteed - Fortin Atlas Celeste - 1776 (text intro), Celestial Atlas by Alexander Jamieson. HubbleSource is cleaning up scans from one historic atlas and making them available in web and hi-res versions for use in non-commercial applications. (See also: David Rumsey Map Collection, and the exhibition Out of this World (index & T.O.C.), more Images, Artwork and Historical Objects at the US Naval Observatory. [more inside]
posted by spock on Dec 13, 2007 - 16 comments

HobbySpace

HobbySpace hosts an exhaustive collection of information and links about space-related hobbies, including amateur astronomy, satellite design, and rocketry for both beginners and experts.
posted by Upton O'Good on Dec 2, 2007 - 3 comments

There's a hole in the Universe, dear Martha, dear Martha

Astronomers find a giant hole a billion light years across & located 8 billion light years away from us. They believe it could be evidence of another Universe at the edge of ours.
posted by scalefree on Nov 27, 2007 - 53 comments

Porter Garden Telescopes

In addition to his work on the design of the 200-inch Hale telescope, amateur astronomer Russell W. Porter (1871-1949) designed and produced a remarkable, bronze-cast garden telescope in the 1920s. Fewer than 60 of these unusual Newtonian reflectors were ever made, and they're even harder to find now: earlier this year, one went for $18,000 at auction. But a reproduction of the Porter Garden Telescope is now available, for a mere $59,000 (it's cast bronze on a marble pedestal); a local cable station has a profile of the people behind it. Via Sky and Telescope.
posted by mcwetboy on Nov 22, 2007 - 8 comments

CalSky map to find Comet Holmes/17P

Here's an excellent map if you want to see Comet Holmes/17P tonight (the comet that, until a couple of nights ago you would have needed a pretty good-sized telescope to even see. Then (out of the blue, as it were) it unexpectedly brightened by over 1,000,000 times to become an easy object for your naked eye –even with the nearly full moon in the sky). I did not know about CalSky but (despite some less-than-attractive web design) is truly the best of the web for online astronomy info and sky maps! [more inside]
posted by spock on Oct 25, 2007 - 24 comments

Astronomy Media Player

Astronomy Media Player - a generous collection of astronomy podcasts all gathered in one spot.
posted by Wolfdog on Oct 8, 2007 - 2 comments

Lucky stars

Using a $20,000 CCD camera and some new software, ground-based telescopes can now get images as good as the Hubble Telescope in many situations [some images ]. By taking many high-quality pictures quickly and taking the best parts of each, Lucky imaging compensates for atmospheric effects to produce lovely images. You can do it too, using free software and any webcam.
posted by blahblahblah on Sep 17, 2007 - 13 comments

Billions and Billions

Billions and Billions astrophotography CCD gallery / film gallery / equipment / tutorials
posted by Blazecock Pileon on Sep 14, 2007 - 7 comments

We live in a wonderfully insane universe.

NASA Astronomers Find Bizarre Planet-Mass Object Orbiting Neutron Star [via]
posted by brundlefly on Sep 13, 2007 - 45 comments

Why we didn't see it coming

Arecibo Observatory, only facility on the planet able to track asteroids with enough precision to tell which ones might plow into Earth is losing funding. NSF has told them to find outside funding for half their budget. Part of the problem? They're in PR, so they have no state senators to fight budget cuts on their behalf. Also facing a crunch, the Very Long Baseline Array (Very Large Array seems ok, money-wise) which stretches from Hawaii to the Virgin Islands.
posted by korej on Sep 9, 2007 - 22 comments

Race To Mars

"Somewhere on the planet are ten-year-olds who, someday, will be the first people to set foot on Mars" 300 scientists and space-experts contributed to what's billed as "a realistic vision of the first Human Mission to Mars" -- Race to Mars. Discovery Channel Canada used Hollywood special effects, but for added realism rather than ray-guns and aliens. On the website, you can argue about whether they got it right. www.racetomars.ca
posted by richlach on Sep 7, 2007 - 24 comments

Hold infinity in the palm of your hand

Not content to merely index all things terrestrial, Google Earth now lets you set your sights on the sky.
posted by the painkiller on Aug 22, 2007 - 23 comments

The Dance of the Galilean Satellites

Time lapse animations of planets and satellites. See what an amateur digital astrophotographer could do a decade ago. This is what the animated gif was designed to do.
posted by dkg on Aug 6, 2007 - 20 comments

Hot Space

B. H. May, CBE, as an astronomy student at Imperial College London co-authored two papers, MgI Emission in the Night Sky Spectrum and An Investigation of the Motion of Zodiacal Dust Particles (pdf) and was on the way to completing his doctorate when he dropped out to form a band. After a 36-year break May went back to school to get his PhD. Last year he co-authored Bang! the Complete History of the Universe. This year he is finishing up his thesis-"Radial Velocities in the Zodiacal Dust Cloud" and this week is in La Palma finishing spectographic observations. Mr May also plays guitar.
posted by MtDewd on Jul 26, 2007 - 24 comments

Learn star navigation in 15 mins

Learn to navigate using the stars in 15 minutes! OK, well maybe not navigate, but you'll know exactly where Orion, Betelgeuse, Polaris (the North Star), Cassiopeia, and Jupiter are.
posted by Mave_80 on Jul 26, 2007 - 36 comments

Look up...and watch down

The GTC (Great Telescope Canaries) sees first light today. Apart from the sheer size (10.4 m) of its mirror and from the science it will deliver, the GTC is remarkable by its location at the Roque de los Muchachos Observatory 2426 m high at the rim of the Caldera de Taburiente in the island of La Palma. La Palma is also, for a number of reasons, also interesting for geologists. In that regard, it made headlines a couple of years back due to a paper about the risk of a collapse of the island which could cause a devastating tsunami. Oh, and it's also a really nice place for a holiday.
posted by Skeptic on Jul 13, 2007 - 15 comments

Astronomers need your help

A team of astronomers needs your help. It's not terribly easy to get computers to distinguish between galaxy shapes, but fortunately humans are not only very good at it, but seem to actually enjoy gazing out in to space. So, go to galaxyzoo.org, look at a few pretty pictures from the Sloan Digital Sky Survey , and help classify millions of galaxies and aid research in to how they form and evolve while you're at it.
posted by edd on Jul 11, 2007 - 43 comments

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