Science & Astronomy

NASA Mercury Probe Trying to Survive for Another Month
Artist's impression of NASA's Messenger spacecraft in orbit at Mercury. Messenger arrived at the solar system's innermost planet in March 2011.
March 29th, 2015
Last week, NASA's Messenger spacecraft executed the first of a series of engine burns designed to lift the probe's orbit slightly and delay its inevitable impact into Mercury's surface by up to a month.
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NASA Moon Orbiter, Mars Rover Face Budget Chopping Block
Illustration of NASA's Lunar Reconnaissance Orbiter
March 27th, 2015
Despite a forward-looking and overall healthy NASA planetary science program budget, two on-duty spacecraft are now on the chopping block.
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On Comet, Philae Lander Still Silent as Europe Keeps Listening
Comet 67P/Churyumov–Gerasimenko on March 18, 2015
March 26th, 2015
The first spacecraft to make a soft-landing on a comet is still quiet on the dusty cosmic body, despite being hailed by another probe orbiting the lander.
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Giant Alien Planet Has 4 Suns in Its Sky
artist’s concept of the four-star system
March 27th, 2015
Astronomers have spotted a fourth star in a planetary system called 30 Ari, bringing the number of such known quadruple-sun systems to two. Numerous two- and three-star planets have been identified.
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Take Stunning Moon Shots, From Your Driveway (Gallery)
A daytime picture of the moon
March 27th, 2015
For moon shots, a rural sky is not always necessary.
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Dark Matter Probably Isn't a Mirror Universe, Colliding Galaxies Suggest
Galaxy Merger A370 Overlaid with Dark Matter
March 26th, 2015
Dark matter living in galaxy clusters doesn't splatter when the galaxies collide, according to new research. The finding suggests dark matter particles, whatever they are, are not part of a "dark sector" that mirrors our own universe.
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Living on Other Planets: What Would It Be Like?
Solar System Montage by NASA
March 25th, 2015
Have you ever wondered what it would be like to live on the moon? What about Mars, or Venus or Mercury? We sure have and that's why we decided to find out what it might be like to live on other worlds in our solar system, from Mercury to Pluto and beyond
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Did 'Iron Rain' Bypass the Moon to Fall Mostly on Earth?
Artist's conception of moon-forming collision
March 27th, 2015
New experiments show that the asteroids that slammed into Earth and the moon more than 4 billion years ago were vaporised into a mist of iron but stayed gravitationally stuck on more massive Earth.
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Supermoon vs. Minimoon: Sizing Up Earth's Satellite
supermoon, minimoon
March 27th, 2015
How super is a supermoon? Here's a minimoon for context.
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Moon's Iron Core May Reveal Solar System Secrets with X-Ray Scan
The Moon Has an Iron Core
March 26th, 2015
The iron heart of Earth's moon has been measured more precisely than ever before. In a new study, scientists used X-rays to study the type of iron likely presence in our lunar companion's core.
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