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Comet C/2011 L4 (PANSTARRS)

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Comet C/2012 S1 (ISON)

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Astronomy News

Your online destination for news articles on planets, cosmology, NASA, space missions, and more. You’ll also find information on how to observe upcoming visible sky events such as meteor showers, solar and lunar eclipses, key planetary appearances, comets, and asteroids.

April 2005
Discovery on the pad
Concerns about ice falling from the external tank lead NASA to again postpone Discovery's launch. Also announced: NASA is starting work on a manned Hubble servicing mission.
By Robert Burnham
Published: April 30, 2005
Tempel 1
Resisting change, pristine Sedna, VATT supernova, and more
Published: April 29, 2005
Abell 1689 gravitational lens
Astronomers use 200,000 quasars to confirm Einstein's prediction of cosmic magnification.
By Dan Falk
Published: April 26, 2005
The first microseconds
Atom-smashing physicists have created evanescent droplets of the fluid that filled the universe microseconds after its birth.
Robert Adler
Published: April 26, 2005
Photographic plate
Group moves to safeguard and archive astronomical plates.
By Martin Ratcliffe
Published: April 22, 2005
Dense cloud of dust
A cloud of dust around a nearby star suggests it also has numerous rocky bodies and perhaps terrestrial planets.
By Robert Burnham
Published: April 21, 2005
Star evolution
A "born-again" star gives astronomers an unprecedented look at late stellar evolution.
By Francis Reddy
Published: April 21, 2005
Space shuttle Discovery
Postponing the earliest launch by a week gives NASA extra time to resolve a few issues.
By Robert Burnham
Published: April 20, 2005
Peary Crater
A few areas at the Moon's north pole see a midnight Sun — at least in summer.
By Robert Burnham
Published: April 20, 2005
Asteroid impact
Astronomers tone down the Torino Earth-impact scale.
Robert Adler
Published: April 19, 2005
Milky Way
Did a galactic collision create the stars in our galaxy's outer disk?
By Ken Croswell
Published: April 19, 2005
DART in space
"Putting a computer in the pilot's seat" suffers a setback.
By Robert Burnham
Published: April 18, 2005
Upsilon Andromedae
Researchers say the eccentric orbits of Upsilon Andromedae's planets got that way by interacting with a wayward world.
By Francis Reddy
Published: April 14, 2005
M31 CCD mosaic
M31 is a lot larger than it looks.
By Ken Croswell
Published: April 13, 2005
Totality from M/S <i>Paul Gaugin</i>
For 36 seconds, the Moon covered the Sun in the South Pacific.
By Michael E. Bakich
Published: April 11, 2005
M31's extended clusters
A new type of star cluster orbits the Andromeda Galaxy.
By Francis Reddy
Published: April 7, 2005
Galactic center X-ray loop
Astronomers have found a giant loop of X-ray emitting gas near our galaxy's center.
By Francis Reddy
Published: April 7, 2005
OWL views
European astronomers get serious about a stadium-size telescope.
Robert Adler
Published: April 7, 2005
Sedna
What influences Sedna's lethargic rotation speed? Nothing &#151; the planetoid spins faster than previously thought.
By Jeremy McGovern
Published: April 7, 2005
Structure scales
Weighing distant galaxy clusters may be easier than astronomers thought.
By Liz Kruesi
Published: April 7, 2005
Celestron scope promo
The California telescope maker plans to resume full production and product development.
By Francis Reddy
Published: April 6, 2005
April 8, 2005, solar eclipse map
April 8 brings the return of a hybrid eclipse. Astronomy's editors are chasing the Moon's shadow.
Published: April 5, 2005
Finding exo-Earths
Half of the known extrasolar planetary systems could harbor habitable Earths.
Robert Adler
Published: April 4, 2005
TETwalker in Antarctica
NASA successfully tests robotic prototype that may join exploration of other worlds.
By Jeremy McGovern
Published: April 1, 2005
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