SpaceX says 'reusable rocket' could help colonize Mars

The US company SpaceX is working on the first-ever reusable rocket to launch to space and back, with the goal of one day helping humans colonize Mars, founder Elon Musk said Thursday.

HUBBLE logs millions observation: photos

Check out Hubble Logs Millionth Observation: Photos

A new, distant arm of the Milky Way galaxy

(PhysOrg.com) -- Our Milky Way galaxy, like other spiral galaxies, has a disk with sweeping arms of stars, gas, and dust that curve around the galaxy like the arms of a huge pinwheel.

Biggest 3-D map of the distant universe

The biggest 3-D map of the distant universe ever made, using light from 14,000 quasars --- supermassive black holes at the centers of galaxies many billions

Group sets plans for largest radio telescope ever

(PhysOrg.com) -- Proving that a lot of little things can go a long way, a group of astronomers have revealed plans to build and install a radio telescope array out of thousands of small inexpensive dishes, spread out over thousands of miles of remote territory.

Giant ring of black holes

(PhysOrg.com) -- Just in time for Valentine

First ever STEREO images of the entire Sun

First ever STEREO images of the entire Sun

Bigelow to lease space habitats to clients in seven nations

Bigelow Aerospace has announced plans to lease space aboard its inflatable space habitats to seven clients in The Netherlands, Sweden, Japan, Singapore,

First Mission to Mercury

As the team of scientists behind NASA’s MESSENGER spacecraft eagerly awaits the craft’s entry into Mercury’s orbit on 17 March, we could soon get answers to questions about the origin, composition, interior structure and geological history of this mysterious planet.

Six small planets orbiting a sun-like star amaze astronomers

(PhysOrg.com) -- A remarkable planetary system discovered by NASA