18:00 02 December 2009  | 9 comments

One of the most massive stars known exploded in 2007, creating an unusual type of supernova that was likely common in the early universe

THIS WEEK:  18:00 02 December 2009  | 7 comments

Detection of high-energy gamma rays from distant "blazars" are forcing a rethink of our ideas about the formation and evolution of galaxies

22:15 01 December 2009  | 13 comments

The Mars Reconnaissance Orbiter has been offline since August – now, the Odyssey probe is down as well, spelling delays for the twin rovers, which use the orbiters to communicate with Earth

21:03 01 December 2009  | 13 comments

A new study suggests that lakes on the Saturn moon may not be just a "flash in the pan", giving potential life longer to develop

15:04 30 November 2009  | 32 comments

Last night the rebooted Large Hadron Collider gave a beam of protons the most energy of any particle accelerator ever

NEWS:  10:00 29 November 2009  | 19 comments

Astronauts will one day get suited and booted in seconds by stepping into an overlarge, part-robotic spacesuit that contracts to fit them

IN BRIEF:  13:47 27 November 2009  | 1 comment

A star that brightened dramatically in 2002 may have been sent into a spin by another star, X-ray observations suggest

19:00 26 November 2009  | 9 comments

After decades of searching, astronomers using two different telescopes have found high-energy gamma rays emanating from a disc around a dense stellar remnant

UPFRONT:  13:16 26 November 2009  | 14 comments

NASA's WISE infrared telescope will be able to find hundreds of near-Earth objects and maybe even a faint Jupiter-sized object lurking in deep space

COVER STORY:  18:00 25 November 2009  | 205 comments

We could reach the stars if we built a black hole starship or a dark matter rocket – we've got the physics to do it

IN BRIEF:  18:00 25 November 2009  | 3 comments

Globular clusters may be the leftovers of small galaxies that merged to form the Milky Way

IN BRIEF:  14:35 24 November 2009  | 12 comments

A pulsar that is forming a massive guitar-shaped wake in interstellar gas has been tracked back to its origin

22:39 23 November 2009  | 92 comments

The particle accelerator is now officially a collider – it will attempt to break the world record for collision energies before the end of the year

FEATURE:  10:23 23 November 2009  | 40 comments

A ring of bright stars surrounds us, giving us some of our most familiar constellations. But where did it come from?

00:24 23 November 2009  | 32 comments

Lakes on Saturn's moon Titan are loaded with acetylene, a chemical some scientists say could serve as food for cold-resistant organisms, a new study suggests

IN BRIEF:  11:00 22 November 2009  | 54 comments

A cloud of hydrogen crashing into our galaxy now appears be a galaxy itself, packed with dark matter – many more may be out there

18:37 20 November 2009  | 14 comments

The beleaguered Hayabusa asteroid probe is back on track to return to Earth after ground controllers cobbled together a working engine from two dead ones

COMMENT AND ANALYSIS:  14:25 20 November 2009  | 120 comments

Have our dreams of sailing through space run out of history? Michael Hanlon thinks they have; Ivan Semeniuk can't see them being allowed to die

23:41 19 November 2009  | 28 comments

The discovery of volatiles in lunar material ejected by NASA's LCROSS mission suggests comets delivered much of the water at the impact site

THIS WEEK:  18:00 18 November 2009  | 73 comments

We're made of subatomic particles that can be in two places at once. So why can't we?