Space
- Planetary Science
Top of the Martian hill
After a 14-month climb up a Martian hill, NASA's rover Spirit took a panoramic image of the view from the top.
- Planetary Science
Satellites could detect quakes on Venus
Strong seismic activity on Venus could cause brief but detectable temperature increases high in that planet's atmosphere.
- Astronomy
Deep Impact
Data from the Deep Impact mission reveal that the bullet that slammed into Comet Tempel 1 on July 4 excavated material that likely hadn't seen the light of day since the birth of the solar system 4.5 billion years ago.
- Astronomy
Recipe for a Heavyweight: Making a massive star
New findings strongly support the notion that at least some massive stars form much as their lighter-weight siblings do, by packing on material from a surrounding disk of gas and dust.
- Astronomy
Hidden black holes
A new study has added to existing evidence that most of the monster black holes at the cores of galaxies are shrouded by dust.
- Astronomy
First Supper: X rays may mark eating habits of baby black holes
Astronomers have evidence that just minutes after their tumultuous birth, baby black holes emit powerful burps of X rays that may be fueled by material left over from their first meal.
- Planetary Science
Radar for rovers on future Mars trips?
Scientists are developing ground-penetrating radar equipment that could serve as geologists' helpers on future Mars-roving vehicles.
- Planetary Science
Enceladus: Small but feisty
Close-up observations of Saturn's tiny moon Enceladus reveal that its south pole is hotter than its equator and that the icy satellite continues to undergo eruptions.
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- Astronomy
Three’s Company: Asteroid 87 Sylvia and her two moons
Astronomers have for the first time discovered an asteroid with two moons, an indication that the rock is highly porous.
- Astronomy
Cosmic soot
Astronomers have found a group of complex organic compounds, polyaromatic hydrocarbons, from a time when the universe was less than one-third its current age.
- Astronomy
Cosmic Computing
The largest computer simulation of the universe ever compiled uses dark matter to shed light on the formation of galaxies and on the visible structure of the universe.
