Using data provided by the Lowell Observatory and Minor Planet Center, this fascinating video provides a view of our knowledge of nearby asteroids and how closely their paths intersect with Earth's. The voiceover explains the count of objects, and what the colorations mean. [slyt]
Surrey Satellite Technology's STRaND 1 demonstrates a new generation of satellites built around smartphones. Tossed into orbit on an Indian PSLV, the toaster-sized microsatellite is based on an Android-powered Nexus One that will control the satellite, run apps, take snapshots, and phone home. While the U.K. leads the smartphone space race, NASA is testing its own PhoneSat series of nanosatellite prototypes. The University of Surrey explains how it works in this video.
"A mission scientist with NASA's Kepler Space Telescope, Natalie Batalha hunts for exoplanets — Earth-sized planets beyond our solar system that might harbor life. She speaks about unexpected connections between things like love and dark energy, science and gratitude, and how "exploring the heavens" brings the beauty of the cosmos and the exuberance of scientific discovery closer to us all". (Audio link of interview at top left corner of page, other relevant links at bottom of page)
Lauren Rojas, a 12 year old from California, sent Hello Kitty on a return trip to the stratosphere (over 28 kilometres above the Earth) and recorded the results.
It's been just over eight years since the Hugyens space probe separated from the Cassini spacecraft and drifted down to the surface Saturn's moon Titan. Along the way it provided video and sounds of its descent.
Now a 3D visualization of its landing, based on data from the spacecraft itself, has been created.
Now a 3D visualization of its landing, based on data from the spacecraft itself, has been created.
Unha-3, Pyongyang's first successful orbital launch vehicle, dropped her first stage into the Yellow Sea after December 12's launch. Analysis of debris salvaged by the South Korean Navy suggests the scud-derived, crudely assembled rocket is actually an ICBM with enough range to theoretically reach the U.S. (should North Korea somehow manage to miniaturize their nuclear weapon technology and develop re-entry ability).
Is Science Fiction promoting pseuodoscience? Is it not really better than fantasy? Is it exhausted and dying, per Paul Kincaid (part 1, part 2), a sort of genre-writing version of completing a list of The Nine Billion Names of God? Does physics-bothering unrepentant space case Alistair Reynolds have a compass pointing the way forwards?
A five-part series on the ultimate limit on technology, and how that limit could help us find other civilizations: 1 2 3 4 5 [via]
Camilla the rubber chicken is the child of a chicken and an extra-terrestrial visitor (whose name is being concealed for legal and safety issues)." After a sad childhood in the circus, Camilla joined the Heliophysics team at NASA and befriended Little SDO, the satellite component of the the Solar Dynamics Observatory. In her capacity as SDO mascot and astrochick, Camilla flew into space with Little SDO, flew into a solar radiation storm, continues to monitor space weather, and is training for a trip to the International Space Station alongside astronaut Lt. Commaner Wiseman. Camilla also participates in science outreach and education programs, and she's currently in Australia, preparing to run the solar eclipe marathon! [more inside]
In 2005, the Discovery Channel aired Alien Worlds, a fictional documentary based on Wayne Douglas Barlowe's graphic novel, Expedition: Being an Account in Words and Artwork of the 2358 A.D. Voyage to Darwin IV." Depicting mankind's first robotic mission to an extrasolar planet that could support life, the show drew from NASA's Origins Program, the NASA/JPL PlanetQuest Mission, and ESA's Darwin Project. It was primarily presented through CGI, but included interviews from a variety of NASA scientists and other experts, including Stephen Hawking, Michio Kaku, John Craig Venter and Jack Horner. Oh, and George Lucas, too. Official site. Previously on MeFi. [more inside]
NASA commentary on Curiosity landing has just started, landing itself is expected two hours later, at 5:31 am UTC/10:31 pm PDT. [more inside]
Coming soon to a red planet near you, it's the Mars Science Laboratory! On Monday, August 6 at 05:31 UTC (other times around the world), NASA's Curiosity rover is expected to land on Mars in search of conditions suited to past or present Martian life. Live coverage begins on NASA TV at 03:30 UTC. But this mission has been years in the making, so if you have a little catching up to do... [more inside]
In the late 1970s the UK's Anglia Television ran a respected weekly documentary series: Science Report. But when the show was cancelled in 1977, the producers decided to channel Orson Welles in their final episode. The result was Alternative 3. Over the course of the hour, the audience would learn that a Science Report investigation into the UK "brain drain" had uncovered shocking revelations: man-made pollution had resulted in catastrophic climate change, the Earth would soon be rendered uninhabitable, and a secret American / Soviet joint plan was in place to establish colonies on the Moon and Mars. The show ended with footage of a US/Soviet Mars landing from May 22, 1962. After Alternative 3 aired, thousands of panicked viewers phoned the production company and demanded to know how long they had left to change planets. [more inside]
Science off the Sphere is a video series by Don Pettit aboard the ISS showing off the neat things you can do in zero-gravity. [more inside]
One of the neater aspects of astronomy is that amateurs often make significant contributions to the field. A few nights ago Wayne Jaeschke found a strange cloud feature in his Mars images. He posted his findings to the site Cloudy Nights. It created a bit of a buzz there, as well as the wider media, (even MSNBC!). It has also piqued the interest of the pros. Researchers working with the Mars Thermal Emission Imaging System onboard the Mars Odyssey spacecraft and the Mars Color Imager onboard the Mars Reconnaissance Observer are looking over their data to try to figure out exactly what it is they're seeing.
Neil deGrasse Tyson gives testimony on March 7, 2012 before the U.S. Senate Committee on Commerce, Science and Transportation (Majority member page) (Minority member page) Eight minutes of speech followed by questioning and response. [more inside]
Is the Earth getting lighter? BBC Radio's More or Less ("the mathematical icing on the cake of life") talks to some of the Naked Scientists from Cambridge about whether the Earth is gaining or losing mass, revealing some surprising and interesting facts.
King of the Cosmos (A Profile of Neil deGrasse Tyson) by Carl Zimmer. (Via) [more inside]
"They may well do it." [The Guardian] Sir Arthur C Clarke predicted in a lost BBC interview that the Russians would win the space race by landing the first man on the moon in 1968, probably on the 50th anniversary of the October Revolution. Arthur C Clarke on The Sky at Night – video.
One of my favorite blogs happens to be local to me. Eric Berger, the Houston Chronicle's "SciGuy" usually reports on the weather. But he also posts entertaining and serious stuff as well. [more inside]
Scientist and Science Fiction author Joan Slonczewski, author of A Door Into The Ocean, guest blogs about science fictional and microbiology on Charles Stross's site: Salt Beings, Microbes grow the starship, Synthetic Babies
Carolyn Porco is the leader of the Imaging Team on the Cassini-Huygens mission. Watch as she extolls the wonders and discovery about two of Saturn's most interesting moons, Titan and Enceladus. [more inside]
The Lunar Reconnaissance Orbiter has taken new photos of the landing sites of Apollo 12, 14 and 17. Almost 40 years after the missions, the tracks made by the astronauts and the Lunar Rover are still visible.
NASA May Have Discovered Flowing Water on Mars Dark, finger-like features appear and extend down some Martian slopes during late spring through summer, fade in winter, and return during the next spring. Repeated observations have tracked the seasonal changes in these recurring features on several steep slopes in the middle latitudes of Mars' southern hemisphere.
Are We Alone In the Universe? New Analysis Says Maybe. In a new paper published on arXiv.org, astrophysicist David Spiegel at Princeton University and physicist Edwin Turner at the University of Tokyo argue...using a statistical method called Bayesian reasoning...that the life here on Earth could be common, or it could be extremely rare — there's no reason to prefer one conclusion over the other. [more inside]
The official Google Earth plugin is one free download that makes all sorts of cool stuff possible in your browser. There's a full screen version of the program (complete with underwater views and 3D buildings) which can be searched by entering queries at the end of the URL. There's a framed version with support for layers, historical imagery, day/night cycles, and the Google Sky starmap. Less useful but more fun are Google's collection of "experiments" demonstrating the possibilities of the Earth API, including a "Geo Whiz" geography quiz, an antipode locater, a 3D first-person view of San Francisco, a virtual route-follower, and MONSTER MILKTRUCK!, a crazy fun driving simulator that lets you careen a virtual milk truck through the Googleplex campus, ricochet off the Himalayas, or explore any other place you care to name. Lots more can be found in the Google Earth Gallery -- highlights include a look at mountaintop removal mining, a real-time flight tracker, a guide to trails and outdoor recreation, a 360 panorama catalog, geotagged Panoramio photos, and the comprehensive crowdsourced Google Earth Community Layer. And while it's too large to view online, don't miss loading the Metafilter user location map into a desktop version of Google Earth! [more inside]
It is a stunning image and one that is bound to be reproduced over and over again whenever they recall the history of the US space shuttle.
The concept of time as a way to measure the duration of events is not only deeply intuitive, it also plays an important role in our mathematical descriptions of physical systems. For instance, we define an object’s speed as its displacement per a given time. But some researchers theorize that this Newtonian idea of time as an absolute quantity that flows on its own, along with the idea that time is the fourth dimension of spacetime, are incorrect. They propose to replace these concepts of time with a view that corresponds more accurately to the physical world: time as a measure of the numerical order of change.
First Orbit. "On 12th April 2011 it will be 50 years to the day since Yuri Gagarin climbed into his space ship and was launched into space. It took him just 108 minutes to orbit Earth and he returned as the World's very first space man. To mark this historic flight we have teamed up with the astronauts onboard the International Space Station to film a new view of what Yuri would have seen as he travelled around the planet. Weaving these new views together with historic voice recordings from Yuri's flight and an original score by composer Philip Sheppard, we have created a spellbinding film to share with people around the World on this historic anniversary." [more inside]
As they leave the solar system, the Pioneer spacecraft have anomalously decelerated, pointing to a possible gap in our understanding of gravity. Now, a computer graphics technique known as Phong shading predicts that the Pioneer anomaly is just a side effect of how the shape of the spacecraft reflects sunlight.
"The Earth tide is a little-known daily event, similar to the oceans' more familiar tides. But the sun and moon's gravity doesn’t just pull on water, it deforms the Earth itself, causing the ground beneath us to bulge toward the pulling heavenly body." [more inside]
ISRO scientists think they have found a horizontal uncollapsed lava tube on the moon, 1.7 km long, 360 m wide, and 120 m high (roughly 1 mile x 1200 ft x 400 ft) which could be used as a lunar base by astronauts for inter-planetary missions. [more inside]
Introducing the Nautilus-X MMSEV, a manned deep space craft proposed by a team at NASA's Johnson Space Centre.
One of the most enduring mysteries in solar physics is why the Sun's outer atmosphere, or corona, is millions of degrees hotter than its surface. - Now scientists believe they have discovered a major source of hot gas that replenishes the corona
A space wardrobe - images of the National Air and Space Museum’s collection of spacesuits from throughout the history of American space exploration.
"I can sense stars, and their whispers amid the roaring of our own Sun." So goes one poetic status of the Voyager 2 twitterfeed, which appeals to my sense of wonder like nothing else on the internet. Interstellar space probes and microblogging go hand in hand in the 21st Century.
The most detailed photo of the surface of the sun looks like this. It was taken by the team at CA's Big Bear Solar Observatory. They have some other neat images of our nearest star at their website. [more inside]
Dmitar Sasselov is an astrophysicist, Director of the Origins of Life Initiative at Harvard and a co-investigator of the Kepler space telescope project to find Earth-like planets around the Cygnus constellation and discover extraterrestrial life. But no matter how successful the Kepler project may be, it still won't answer the most fundamental questions of astrobiology: How diverse is life in the universe? If alien life exists, will it have Earthly DNA and proteins? Or will it run on something else? So Dr. Sasselov has decided to collaborate with two synthetic biologists, asking them to create a life form based on mirror-image versions of what we know as the essential building blocks of living things on Earth. [more inside]