Astronomy
- Astronomy
Gang of four: Debut of a big telescope
In the desert of northern Chile, a fourth 8.2-meter telescope opened for business, completing a quartet known as the Very Large Telescope.
- Astronomy
Stellar motions provide hole-y data
Measuring for the first time the acceleration of stars near the dense core of our galaxy, astronomers have obtained more precise information on the location and density of the black hole that lurks there.
- Astronomy
New Images: They Might Be Planets
Astronomers have for the first time obtained images of as many as 18 objects beyond our solar system that, based on their mass alone, could qualify as planets.
- Astronomy
Astronomy: Man Bites Dog; Planet heats its star
Observing a sunlike star 90 light-years from Earth, astronomers have found evidence of a closely orbiting planet heating its star.
- Astronomy
Taste of a Comet: Spacecraft samples and views Wild 2
Pummeled by debris, a NASA spacecraft last week snatched up dust samples while taking the sharpest images ever of a comet's icy core.
- Astronomy
X-ray images highlight galaxy collisions
A new study provides graphic evidence that X-ray observations may be the best way to identify ancient collisions between galaxies.
- Astronomy
Cool Cosmos: Orbiting telescope views infrared universe
Astronomers unveiled the first images and spectra taken by the most sensitive and highest-resolution infrared observatory ever sent into space.
- Astronomy
Cool Cosmos: Orbiting telescope views infrared universe
Astronomers unveiled the first images and spectra taken by the most sensitive and highest-resolution infrared observatory ever sent into space.
- Astronomy
Breach of the Shield: Magnetic links between sun and Earth last hours
Once breaches have formed in Earth's protective magnetic field, they persist for many hours, allowing charged particles from the sun to gush through and create electrical disturbances.
- Astronomy
Spying a planet in star’s dusty veil
Astronomers blocked out the light of a nearby star and found hints of an orbiting planet.
- Astronomy
Alien stars pass close to home
Stars from an alien galaxy are raining down on our own Milky Way and passing just a few hundred light-years from Earth.
- Astronomy
Solar Flip-Flops: Sun storms spawn magnetic reversal
Coronal mass ejections, billion-ton clouds of charged particles blasted from the sun, appear to play a key role in reversing the sun's magnetic poles every 11 years.
