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Updated: 4 hours 43 min ago

Astronomers find the first evidence of a giant collision between exoplanets

Thu, 02/14/2019 - 05:00
New research suggests the dense world Kepler-107b got smacked by a planet at some point in its history, leaving behind a hefty, iron-rich core.
Categories: Astronomy

NASA declares 'mission complete' for Opportunity rover

Wed, 02/13/2019 - 06:00
After nearly 15 years exploring the Red Planet, the Mars Exploration Rover mission has come to a close.
Categories: Astronomy

The greatest discoveries from NASA’s Mars Opportunity Rover

Wed, 02/13/2019 - 05:00
NASA's Opportunity Rover spent fourteen years exploring Mars and performing science. Here are some of the highlights.
Categories: Astronomy

NASA's Opportunity rover is dead. We asked NASA scientists to write eulogies for the robot

Wed, 02/13/2019 - 05:00
After some 15 prolific years on the Martian surface, NASA’s Mars Opportunity rover has gone silent. And after an all out effort to re-establish contact, the space agency says it’s given up hopes of ever hearing back from the rover. We talked to the NASA engineers and scientists whose lives have been touched by the Opportunity rover about their experiences and what the craft meant to them. For some researchers, the mission has encompassed their entire career. For others, the spacecraf
Categories: Astronomy

We’ll need a whole new landing approach to put humans On Mars

Wed, 02/13/2019 - 05:00

To land the kind of heavy spaceships that can carry human astronauts to Mars, engineers will need new methods to touch down.

Categories: Astronomy

NASA to speak today on the fate of Mars Opportunity Rover

Wed, 02/13/2019 - 05:00

We haven't communicated with Opportunity since June, leaving the rover's fate up in the air. 

Categories: Astronomy

There's a second impact crater under Greenland

Wed, 02/13/2019 - 05:00
A NASA scientist searched for "a couple hours" before spotting the additional — larger — site.
Categories: Astronomy

Scientists finally confirm a big theory about solar system formation

Tue, 02/12/2019 - 05:00
When a disk of material spins in the cosmos, how do the objects involved react? Researchers recently used a giant swirling tank of water to find out.
Categories: Astronomy

Astronomers might soon get more glimpses into the early universe

Mon, 02/11/2019 - 05:00
Gravitational lensing can brighten faraway objects, offering a peek at the distant, dim cosmos.
Categories: Astronomy

The International Space Station’s new 3-D printer recycles old plastic into custom tools

Mon, 02/11/2019 - 05:00
New resources are hard to come by in space. That's where the Refabricator comes in.
Categories: Astronomy

A radioactive metal may stifle the formation of water worlds

Mon, 02/11/2019 - 05:00
Because it can dry out the building blocks of planets before they merge, radioactive aluminum may play a major role in determining whether a world ends up wet or not.
Categories: Astronomy

The Sky This Week from February 8 to 17

Fri, 02/08/2019 - 05:00

Two nice planetary conjunctions take place this week, one in the evening sky and the other before dawn, while the Moon remains a star attraction all week.

Categories: Astronomy

Moonlight guides dung beetle activity at night

Fri, 02/08/2019 - 05:00
Insects can be celestial navigators, too - and some even rely on specific properties of light to find which way to go.
Categories: Astronomy

NASA honors fallen astronauts with Day of Remembrance

Thu, 02/07/2019 - 05:00
This year on February 7, the United States will recognize astronauts who lost their lives in the pursuit of spaceflight with an official Day of Remembrance.
Categories: Astronomy

The first CubeSats ever to visit Mars have gone silent

Wed, 02/06/2019 - 05:00
The twin MarCO CubeSats that accompanied InSight to the Red Planet proved these tiny satellites have uses beyond Earth orbit. Now, their mission has ended.
Categories: Astronomy

MUSE spots a jet bursting from an infant star

Wed, 02/06/2019 - 05:00
Found within a star-forming region in the Large Magellanic Cloud, the new observation marks the first time the jet of a young and massive extragalactic star has been captured in visible light.
Categories: Astronomy

Watch InSight's busy first months on Mars

Wed, 02/06/2019 - 05:00
From testing its cameras to placing its seismic instrument, NASA's InSight lander is wasting no time making itself right at home on the Red Planet.
Categories: Astronomy

Flaring star pushes out "snow line," unlocking previously frozen organic molecules

Wed, 02/06/2019 - 05:00
Organic molecules linger throughout the cosmos, but for astronomers to study them around a star, they must be not too close, not too far.
Categories: Astronomy

America once considered nuking the Moon, but they settled on smashing things into it instead

Wed, 02/06/2019 - 05:00
Though nuking the Moon makes little sense, less dramatic lunar impact missions have taught researchers a great deal about our nearest neighbor.
Categories: Astronomy

Iconic NASA missions that improved with age

Tue, 02/05/2019 - 05:00
Whether studying Mars, distant exoplanets, or the cosmos as a whole, these NASA missions not only did their jobs, they excelled at them.
Categories: Astronomy

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