After 10 months and 442 million miles, the orbiter is scheduled to begin orbiting Mars this weekend. MAVEN will spend a year gathering information about the planet's upper atmosphere, in an effort to learn what made Mars inhospitable to life.
Astronomers have discovered a budding galactic nucleus, which is undergoing a ferocious rate of star formation. It is providing researchers with their first glimpse at a key step in the galaxy-formation process.
For the first time, scientists have gotten important confirmation of the most fundamental process fueling the sun. Now, they want to use that research to learn more about the conditions that existed when the sun was born.
If the Pacific Remote Islands Marine National Monument becomes a marine reserve, it would double the area globally subject to tight fishing restrictions. Other countries are also working to expand the area of such ocean havens.