Amateur and professional astronomers rejoice , point your telescopes at RA: 03:21:39.71 Dec: +16:52:02.6 to watch a new phenomenon that could turn into a supernova explosion
posted by elpapacito
on Feb 24, 2006 -
The Pioneer Anomaly.
Something's up in deep space: the Pioneer spacecraft
, now out of contact, have shown an unexplained Doppler drift, indicating sunward acceleration, effectively decelerating the probes cumulatively. The effect may be be nongravitational, and could be explained by any number of factors: an undiscovered twist in Newtonian physics, localized cosmological contraction issues, or just venting gas. Other deep space probes may have experienced the anomaly as well, and a new mission could explore the puzzle
; but for now, all we have is past Pioneer data, and that's stored on old 9 track tape
which can only be read by antique readers. What's to be done? (Also see Pioneer Odyssey
for a nostalgic romp through those early days of deep space exploration. And NASA, bring back the original Pioneer home page
posted by brownpau
on Jun 13, 2005 -
NASA's Chandra X-Ray Observatory recently detected
[reg required] the largest explosion ever detected in the universe: an eruption releasing the energy of hundreds of millions of gamma ray bursts
. Just to put it in perspective, a single GRB
releases enough radiation to wipe out
just about everything human beings would require for survival in a 1000 light year radius. (The Milky Way spans ~100,000 light years, while the United Federation of Planets
spans about 8,000). Arthur C. Clarke has gone so far as suggesting that GRBs might be one of the reasons for Extra-Terrestrial silence: Gamma Ray Bursts
are so large and inescapable, a single one would wipe out even an enormous galactic empire. Makes killer asteroids
seem downright quaint
posted by absalom
on Jan 8, 2005 -
With all this talk of wars in distant countries, it's easy to forget that there's exciting things going on just 300 million km from your back porch. NASA has provided 90 second videos of the first 90 sols of the Spirit
[5MB .mov] and Opportunity
rovers [5MB .mov].
posted by fatbobsmith
on May 18, 2004 -
Life on Mars? Methane has been found in the Martian atmosphere which scientists say could be a sign of present-day life on Mars. It was detected by telescopes on Earth and has recently been confirmed by instruments onboard the European Space Agency's orbiting Mars Express craft. Methane lives for a short time in the Martian atmosphere so it must be being constantly replenished. There are two possible ways to do this. Either active volcanoes, but none have yet been found on Mars, or microbes
. The Independent has it as Methane find on Mars may be sign of life
. The second group to detect signals of methane in the Martian atmosphere is led by Michael Mumma of Nasa's Goddard Space Flight Centre in Maryland, who used powerful spectroscopic telescopes based on Earth. This team is even believed to have detected variations in the concentrations of methane, with a peak coming from the ancient Martian seabed of Meridiani Planum, which is being explored by a Nasa rover. This could indicate a subterranean source of methane which is pumping out the gas, either due to some residual geological activity or because of the presence of living organisms producing it as a waste gas. Asked whether the continual production of methane is strong evidence of a biological origin of the gas, Dr Mumma said: "I think it is, myself personally." As to how...
posted by y2karl
on Mar 28, 2004 -
In about 24 hours, the Beagle 2 lander
will descend to the surface of Mars, courtesy of the European Space Agency. After a few mighty bounces, encased in a giant rubber ball, the lander will open up and allow its instrument payload to start sampling the surface.
This is the first in a trifecta of landers
destined for Mars during the next month. NASA's landers
, Spirit and Opportunity
, land on January 3rd and January 24th.
posted by warhol
on Dec 23, 2003 -
The Best of Hubble
Its mission will end in 2010. Four years later it will re-enter the atmosphere and burn up. Many astronomers are calling for Hubble to be refurbished
and its mission extended to 2020. Here
are some of it's best pictures.
posted by reverendX
on Dec 10, 2003 -
The largest solar flare of the current solar cycle
shot off the sun earlier today. After the media latched on to what was predicted to be mostly a non-event last week (probably due to a NASA article released around the same time about a super spacestorm
) , it's not making as much news this time. But you should pay attention this time
. This could be the best and last chance for a lot of us farther south to see some auroras before the sun dives into solar minimum, assuming all the variables line up
correctly this time. I recommend watching the Solar Terrestrial Dispatch
, as it is a great all around resource for solar activity and auroras that includes live data and sightings reports by the general public. Unfortunately though, no doubt as word IS spreading, that site is being hammered again and may be quite slow.
posted by yupislyr
on Oct 28, 2003 -
Breathtaking Hubble picture
of the Sombrero Galaxy (also identified as M104). The Hubble Heritage team took the original images during May and June of this year using the Advanced Camera for Surveys and multiple color filters. They then stitched 6 images together to make the final composite image.
posted by Irontom
on Oct 10, 2003 -
NASA's Official 'Galileo Dies' Page.
Galileo is set to crash into Jupiter on Sunday. Responsible for many great images
and tons of information, Galileo served well. Find a complete history of the Galileo mission here
. Also, don't forget to watch the End of Mission webcast this Sunday at approx. 2 PM EST here
posted by Ufez Jones
on Sep 16, 2003 -
Asteroid orbits Enter the designation or name of any asteroid or comet, and a 3D orbit visualization tool will appear for that object
If Chicken Little had this link he might have calmed down a little. Or not...Find out if your favorite asteroid is about to rock your world.
posted by konolia
on Sep 2, 2003 -
Just a reminder
that the lunar eclipse occurs tonight, starting at 7:00pm Pacific Daylight Time (and lasting about three hours). Various webcasts have been set up for the darkness-impaired.
Apologies for the double-post, and I am aware that I'll probably get like 5 comments that say "SpaceFilter".
posted by hammurderer
on May 15, 2003 -
--and promise to as brighter or brighter than last year:
NASA scientists' predictions for the 2002 Leonid meteor storm.
Such meteor storms rarely happen in consecutive years, but 2001 and 2002 are exceptions. Experts have just released their predictions: Depending on where you live (Europe and the Americas are favored) Leonid meteor rates in 2002 should equal or exceed 2001 levels.
That's the good news. The bad news is that the Moon will be full when the storm begins on Nov. 19th. Glaring moonlight will completely overwhelm many faint shooting stars. Indeed, I often hear that the Moon is going to "ruin the show."
We shall see.
posted by y2karl
on Nov 16, 2002 -
Swan song for a great explorer.
Tomorow, the Galileo explorer will make a flyby of Jovian moon Amalthea
ending pehaps the geatest unmanned mission in NASA history. Galileo telemetry may not survive the flyby having already receieved much more radiation than it was designed for. Even if it does survive, this will be its final orbit scheduled to crash into Jupiter in September of next year. In spite of antenna difficulties, the spacecraft returned many beautiful images
of Jupiter's moons, along with coverage of the Shoemaker-Levy collision
and the first atmospheric probe to decend into Jupiter's weather.
posted by KirkJobSluder
on Nov 3, 2002 -
There's something out there
Target Body: J002E3 Spacecraft (UNCONFIRMED)
Observer Location: Los Angeles, CA
Coordinates: 118°14'27.6''W, 34°03'15.1''N
Since September 5th, the Minor Planet Mailing List (MPML) has been abuzz with speculation about an unidentified 16th- magnitude object. During the next 10 days the object will be moving rapidly across Aries and then Taurus, passing between the Pleiades and Hyades star clusters.
posted by riley370
on Sep 13, 2002 -
A computer aided simulation builds a spiral galaxy from its beginning
. In all, 390,000 particles were placed in an arrangement similar to a newborn galaxy. The end result after three months is an event that is believed to take billions of years to occur. (animation)
posted by samsara
on Aug 7, 2002 -
Sol: A Great Big Ball of Burning....Iron?
Well that's what a UMRolla professor thinks anyway -- instead of being mostly hydrogen, that the sun is actually mostly iron
. He's going against all popular belief, and indeed lots of evidence, but his theory states that our sun formed around the iron core of an old supernova.
posted by LuxFX
on Jul 24, 2002 -
The Solar System Simulator
to simulate - as realistically as possible - what one would actually see from any point in the Solar System. The software looks up the positions of the Sun, planets and satellites from ephemeris files developed here at JPL, as well as star positions and colors from a variety of stellar databasees, and uses special-purpose renderers to draw a color scene. Texture maps for each of the planets and physical models for planetary rings have been derived (in most cases) from scientific data collected by various JPL spacecraft.' Far too complicated for me to even begin to understand, still I've always wondered what Saturn looks like
posted by RobertLoch
on Mar 27, 2002 -
Space, Here We Come!
The Chinese make significant progress in their quest for the stars. A good bit of background from Wired
explains that they're leveraging off of Russian tech but China still considered the program their #1 sci-tech advance last year
. As an aside, some nice spy pictures
are available of the Jiuquan Space Facility although I imagine it's been a developed a bit since then.
So, will getting a man into space signficantly change the world's opinion of China as it slowly evolves in a major world player? For Americans, will it be 1957
all over again
except the little beep beep
is replaced by a Chinese man waving back at them?
posted by warhol
on Mar 26, 2002 -
Puzzling X-rays from Jupiter
"We weren't surprised to find x-rays coming from Jupiter." Other observatories had done that years ago. The surprise is what Chandra has revealed for the very first time: the location of the beacon -- surprisingly close the planet's pole -- and the regular way it pulses. (Via Fark.)
posted by Mwongozi
on Mar 7, 2002 -