Astronomy & Space news

Astronomical measurements must account for gravity

One of the consequences of general relativity is that light can be deflected by nearby masses. Mass curves space, and this curvature causes light to bend slightly. It was first observed during a total eclipse ...

Sep 25, 2014
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What is the geometry of the universe?

One of the big questions in cosmology regards the shape of the universe. "Shape" in this case is not the distribution of galaxies, but rather the shape of space and time itself. In general relativity, space ...

Sep 24, 2014
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Coronal mass ejections at Mars

Looking across the Mars landscape presents a bleak image: a barren, dry rocky view as far as the eye can see. But scientists think the vista might once have been quite different. It may have teemed with water ...

Sep 24, 2014
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Why is everyone vying for a piece of Mars?

The red planet is about to welcome a new visitor: India's Mars Orbiter Mission (MOM) started orbiting Mars on September 24. But MOM is not the only new kid in town. The American MAVEN explorer arrived at ...

Sep 24, 2014
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The origin of Uranus and Neptune elucidated?

A team of French-American researchers led by the UTINAM Institute (CNRS/Université de Franche-Comté) has just proposed a solution to the problematic chemical composition of Uranus and Neptune, thus providing ...

Sep 24, 2014
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Getting to the root of the problem in space

When we go to Mars, will astronauts be able to grow enough food there to maintain a healthy diet? Will they be able to produce food in NASA's Orion spacecraft on the year-long trip to Mars? How about growing ...

Sep 23, 2014
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