Earth in the solar system
Understanding the Russian asteroid
Comet explores sun!
In 2011, a suicidal comet brushed the sun — showing a swirling magnetic field, the source of dangerous “space weather.” What did we More
Space messengers: Private or public?
After an asteroid strikes, meteorite hunters go to work. What are the rules when you are looking for a hunk of outer space! More
Dunewatching, Martian style
New pix from Mars show sand dunes on the move. Mars has been dry for 1.5 billion years; could massive erosion be due to wind? Yes, says More
Running out of space
With space shuttles in museums, the near-term American plan to return to space relies on other countries or private firms. More
“No prob” sez life to crashing asteroids!
4B years ago, the “late heavy bombardment” burned out all life — or not… High-temp bacteria could have survived in deep rocks. More
Year of astronomy: More reasons to love stars!
400 years ago, Galileo discovered the moons of Jupiter. We discover water from 11 billion years ago, volcanoes at Titan, and more! More
Tales from the solar system: Voyagers told ‘em best!
The Long Goodbye: 30 years after blast-off, two Voyager spaceships have reached the edge of the solar system. More
What we did on our summer vacation: Visit Mars!
It’s a boom time for studying Mars, and the perfect time for the be-all, end-all summer vacation. Ride a robot rover. More
Super View of Supernova
After 20 years, star explosion reveals more secrets. What gives in these giant bangs? More
Star-Burst Fills Empty Hole
Where did all the dust come from? New study shows a star explosion making mucho dust. More
Astronomical Conundrum: Is this a Planet?
Losing count: New study finds object larger than Pluto in the distant solar system. Do we now have 10 planets — or 8? More
A Bar in the Galaxy! Milky Way’s secret spot
Think you know the Milky Way, our home galaxy? Think again. There’s a large bar at the center, and it’s open for business. More
Amateur Astronomy: Big Contribution
Amateur astronomers watch variable stars, asteroids, comets — helping create a better picture of the universe. More