The landmark 10th anniversary of the Hubble Space Telescope's Hubble Heritage Project is being celebrated with a "landscape" image from the cosmos.
Hot spots near the shattered remains of an exploded star are echoing the blast's first moments, say scientists using data from NASA's Spitzer Space Telescope.
Astronomers are reporting on a strange case where one of the littlest of stars "twinkled" with gamma rays, X-rays, and light -- and then vanished.
There's an old saying in astronomy: Galaxies are like people. They're only normal until you get to know them.
Scientists find that dim areas at the edges of active sunpot regions may hold the key to the sun's energy processes.
One of the nearest supernovas in the last 25 years has been identified over a decade after it exploded.
Tons, perhaps tens of tons, of carbon molecules in dust particles and meteorites fall on Earth daily. Researchers have noticed that most meteorite carbon are polycyclic aromatic hydrocarbons, the most common carbon-rich compound in the universe.
NASA's planet-hunting Kepler mission, scheduled to launch in 2009, has survived an extreme temperature test.
NASA's Swift satellite has found the most distant gamma-ray burst ever detected. The blast arose from a star 12.8 billion light-years away.
When it comes to firing telescopes and their instruments into the frigid cold of space, the more you test your hardware, the better.