Bjorn Carey

It's unlikely that NASA's falling satellite will touch down on land, but the agency would be responsible for any damage compensation.

New simulation reveals sound waves don't travel as far on Mars as on Earth.

Three years of scouring the skies with a "homemade" telescope fashioned from commercially available parts has finally paid off for astronomer Peter McCullough.

The meteorite has a chemical composition unlike anything ever seen.

Magnetic forces at the center of the galaxy have twisted a nebula into the shape of DNA, a new study reveals.

The distant planet is similar in composition to Earth, but inhospitable as Uranus.

After a seven-year wait, scientists have finally been able to analyze the cometary and stellar dust particles captured by the NASA Stardust spacecraft.

Though fleeting, these new stars are some of the brightest objects in the sky.

New observations of cannibalistic galaxies show how the universe got started.

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A new series of reports from Huygens reveals more of Titan's secrets.

So far liquid water has remained hidden, possibly because it may not exist for more than a fleeting second.

Scientists present the most complete image of how massive stars trigger the formation of new massive stars.

Concept spacecraft could move asteroids with the equivalent force of lifting a coffee cup.

Space Adventures will make Daisuke Enomoto the first Japanese space tourist.

New Hubble images detail a Martian dust storm bigger than Texas.

New evidence shows the death of a massive star can create a neutron star.

According to a NASA report that evaluates the risks of sending a manned mission to Mars, Martian dust poses as one of the biggest potential problems.

A new high-resolution map of Mars's magnetic field indicates that the red planet's crust once moved like present-day Earth's.

Venus is commonly known as Earth's "twin sister," but when it comes to being alike, these two are more like Arnold Schwarzenegger and Danny DeVito than Mary Kate and Ashley Olsen.

This summer, scientists pointed the Hubble Space Telescope at the Moon to take a closer look at its soil.

The idea that comets and meteorites seeded an early Earth with the tools to make life has gained momentum from recent observations of some of these building blocks floating throughout the cosmos.

Stars are born closer to the Milky Way's central back hole than was thought possible.