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New research pins down the epoch when galaxy clusters make the last of their stars, helping astronomers understand more about how galaxies form.

Here's look at the top 10 summer sky objects to try and find before autumn arrives.

NASA is developing a mission to plunge a car-sized probe directly into the sun's atmosphere, exploring a region no spacecraft has ever visited.

The astronauts aboard the International Space Station won't be throwing any burgers on the grill this Labor Day, but at least they'll get the holiday off.

A new glimpse of a well-known supernova could provide new clues about how dying stars affect their surroundings.

A new survey of asteroids near Earth shows these space rocks are a mixed bag, with some shiny and bright, others dark and dull.

New airbag technology that mimics nature's way of protecting seed embryos could take the bumps out of spacecraft landings.

Volunteers in Russia are approaching the three-month mark in their record 520-day Mars spaceflight simulation. Meanwhile, researchers will continue to pay close attention to how the six volunteer "astronauts" physically and psychologically cope throughout the mock mission to the red planet.

A Proton rocket launched Wednesday bearing three spacecraft to help expand Russia's satellite navigation system.

Sun-powered spacecraft could be the ticket to traveling beyond the solar system, scientists say.

In a new letter 30 Nobel laureates and space officials argue for different NASA spending priorities in a bill working through Congress.

NASA is challenging the cooks of TV's 'Top Chef' to dream up a new meal for astronauts.

A striking galaxy buzzing with energetic star formation takes center stage in a new photograph that showcases an unusual "superwind" of out-flowing gas.

A space station astronaut has photographed Hurricane Earl as it heads towards the U.S. coast as a powerful Category 4 storm.

The fallout from the current mass extinction of life on Earth will be far from simple to predict

Theory says the Earth's magnetic field can't flip in just a few years, yet for the second time evidence has been found of it happening in the past

MOSCOW - A team of Russian cosmonauts working at the Russian segment of the International Space Station (ISS) are unhappy about the absence of hot showers onboard, a Russian cosmonaut said on Thursday. The U.S. segment of the station has a shower cabin that was delivered by the Endeavor shuttle in 2008. "There are wipes and towels onboard instead of a shower. It is not so easy to do without it for six months. Besides, it turned out that the towels we wipe ourselves with are not only damp,  [...]

After taking part in Thursday’s daily planning conference with flight control teams on Earth and performing some routine morning inspections, Expedition 24 Commander Alexander Skvortsov and Flight Engineer Fyodor Yurchikhin worked in the Russian segment of the station, cleaning ventilation components and monitoring its environmental and life support systems. Flight Engineers Shannon Walker and Doug Wheelock began their day by collecting blood samples for an experiment that studies the decr [...]