Astronomy | featured news

NASA's Curiosity rover reports confirmation that Mars has lost at least half of its early atmosphere.

Wow, what a view of the Curiosity rover! This is a self-portrait mosaic made from brand new images taken by the MAHLI (Mars Hand Lens Imager), the high-resolution camera located on the turret at the end of MSL’s robotic arm. The arm was moved for each of the 55 images in this mosaic, so the arm doesn’t show up in the mosaic. This montage was put together by Stuart Atkinson, and he notes that these images are just the low-res thumbnail images that have just been sent to Earth. “Imagine what the hi-res version will look like!!” Stu said.

Using NASA's Fermi Gamma Ray Space Telescope, scientists were able to detect the light of the earliest stars, which are now long since gone... One of the primary goals of the Fermi Gamma Ray Space Telescope is to measure the starlight in the universe and use that to figure out how much light has ever shone in it. Yesterday, astronomers on Fermi’s research team announced that they have reached that goal.

A space capsule has returned to Earth, ending the first commercially contracted re-supply mission to the International Space Station (ISS). The capsule was sent by the California-based company SpaceX, the first of 12 missions it will perform for US space agency Nasa... SpaceX says it is just a few years away from being able to provide an astronaut "taxi" service.

For years, astronomers have known about the supermassive black hole at the center of our Milky Way galaxy, but these pictures from NASA's NuSTAR telescope show a rare view of the usually sleeping giant gobbling down a cosmic snack.

A chunk of meteorite struck the house of a San Francisco Bay Area resident, landing in her backyard, after a meteor streaked through the sky on Wednesday evening.

Scientists have spent years hunting for Earth-like planets orbiting stars elsewhere in the galaxy. Now they have found one that's a relative stone's-throw away. The so-called exoplanet — a planet beyond our solar system — is circling Alpha Centauri B, just 4.37 light-years from Earth. A mere 3.7 million miles from the star's surface, it is far too hot to support life. But there's a chance that another planetary sibling may reside in the system's so-called habitable zone, where liquid water could exist, scientists say.

Northwest Louisiana authorities are investigating the source of whatever shook people's residences and businesses about 11:40 p.m. Monday. The Webster sheriff's office now is entertaining the possibility that it may have been a meteorite, possibly in the Dixie Inn area. There have been a large number of reports stating that they saw something come down instead of something blow up, a spokesman said.

The surface of Saturn's huge moon Titan has the consistency of soft, wet sand with a fragile crust on top, a new analysis of a nearly eight-year-old space probe landing suggests.

It was supposed to be a slow but smooth journey to retirement, a parade through city streets for a shuttle that logged millions of miles in space. But Endeavour's final mission turned out to be a logistical headache that delayed its arrival to its museum resting place by about 17 hours. After a 12-mile weave past trees and utility poles that included thousands of adoring onlookers, flashing cameras and even the filming of a TV commercial, Endeavour arrived at the California Science Center Sunday to a greeting party of city leaders and other dignitaries that had expected it many hours earlier.