NYT>Space&Cosmos

Astronomers have made the most precise measurements yet of the Hubble constant, which expresses how fast the universe is growing.

The NASA spacecraft Cassini has taken razor sharp close-ups of Enceladus, which has jumped to near the top of the list of potential places for life in the solar system.

The next-generation rocket likely will be delayed, agency officials said.

The Hubble Space Telescope made its 100,000th trip around the Earth.

After rumors of a major discovery bearing on the possibility of life on Mars, NASA announced the results of a soil test that has nothing directly to do with the planet’s habitability.

“The Universe in Mirror: The Saga of the Hubble Space Telescope and the Visionaries Who Built It”is a breezy behind-the-scenes account.

When a spacecraft was lost, portions of the cremated remains of 208 people went missing as well.

A privately financed rocket was lost on its way to space, bringing a third failure in a row to an Internet multimillionaire’s effort to create a market for low-cost space-delivery business.

The first stars in the universe were short-lived brutish monsters that changed the nature of the cosmos forever, new computer simulations suggest.

What caused the weird sunset I observed from Cape Cod last month?

Sir Richard Branson, the founder of the Virgin companies, and Burt Rutan, the aircraft designer, unveiled a two-fuselage airplane that may someday lift passengers toward space.

The researchers hope the finding will be a step in developing reliable forecasts of geomagnetic storms.

Images taken by the Hubble Space Telescope show that Jupiter’s small red spot has moved.

The latest findings from the Martian Arctic offer more hints of a wet past but paint a very arid present, scientists reported Monday.

The mission to service the Hubble Space Telescope will be delayed until next year, NASA officials said.

Space Exploration Technologies Corporation launched a rocket of its own design successfully into orbit on Sunday night.

Three Chinese astronauts returned safely to earth in their space capsule after spending nearly three days in low earth orbit and completing the nation’s first spacewalk.

The provision would allow NASA to buy seats on Russia’s Soyuz spacecraft until 2016, thereby granting the agency continued access to the International Space Station.

The three-day mission by the Shenzhou VII spacecraft is expected to include the country’s first attempt at a spacewalk.

NASA’s Mars rover Opportunity is heading for a crater 13.7 miles wide.