Have you ever felt that you ought to be able to see more in the night sky using just your unaided eyes? You may need nothing more than a new pair of eyeglasses.
These communications satellites can briefly outshine Venus as they spray the ground with reflected sunlight.
A no-nonsense primer to an astronomical rite of passage.
The Spitzer Space Telescope has produced a magnificent mosaic of the Christmas Tree Cluster.
Will M77's pinwheel pattern soon wind its way out of existence?
Astronomers have unveiled a super-sharp mosaic of this singular stellar corpse.
Light from the first stars may lurk within a 10-hour Spitzer Space Telescope image of the constellation Draco.
The Hubble Space Telescope has uncovered an apparently naked quasar.
A recently completed radio-telescope array has found tantalizing evidence that nature makes big stars and little ones the same way.
Some say no new mystery force is needed to explain why the universe's expansion is speeding up.
Can one binary star cast doubt on myriad brown dwarfs?
unveiled this stunning image of NGC 1300, the 10th-magnitude barred spiral some 69 million light-years distant in the constellation Eridanus.
The University of Chicago soon may sell Yerkes Observatory and its surrounding acreage.
Scientists using the Spitzer Space Telescope may have found a missing link in the life story of solar systems like our own.
The Spitzer Space Telescope has revealed one of the closest globulars known.
Astronomers have found Gamma-Ray bursts coming from closer places than ever before seen.
Scientists using the Chandra X-ray Observatory have documented the existence and longevity of buoyant magnetic bubbles in a distant galaxy cluster. And in doing so, they may have discovered how magnetic fields came to permeate galaxy clusters — the largest gravitationally bound structures in the universe. Brian McNamara (Ohio University, Athens) and his colleagues...
Historic Mt. Wilson is once again at the forefront of astronomical research.
Hubble's deepest-yet image comes amid uncertainty about the space telescope's future.
It seems that the shredded remains of the Sagittarius dwarf galaxy encircle the Milky Way.
Are brief flashes of X-rays from random points in the sky related to gamma-ray bursts and exploding stars?
Astronomers worldwide are observing around the clock right now to crack this superbright star's mysteries.
Even the quietest galaxies today hold central black holes that roared and blazed when fed in ages past.
The Chandra X-ray Observatory turns its eye toward the aftermath of a high-speed galaxy collision.
Hubble's newest camera has joined the hunt for exploding stars billions of light-years away.