Astrophysical Journal

Continents may be a key feature of Super-Earths

Huge Earth-like planets that have both continents and oceans may be better at harboring extraterrestrial life than those that are water-only worlds. A new study gives hope for the possibility that many super-Earth ...

Apr 18, 2014
5 / 5 (9) 1

Pushy neighbors force stellar twins to diverge

(Phys.org) —Much like an environment influences people, so too do cosmic communities affect even giant dazzling stars: Peering deep into the Milky Way galaxy's center from a high-flying observatory, Cornell ...

Apr 15, 2014
4.8 / 5 (5) 0

Supernova cleans up its surroundings

(Phys.org) —Supernovas are the spectacular ends to the lives of many massive stars. These explosions, which occur on average twice a century in the Milky Way, can produce enormous amounts of energy and ...

Apr 10, 2014
5 / 5 (7) 0

New tool for galactic archaeology

(Phys.org) —Reconstructing the history of our Galaxy has just become a whole lot easier, thanks to a team of international astronomers led by Dr Luca Casagrande from the Research School of Astronomy and ...

Apr 07, 2014
5 / 5 (26) 0

Sakurai's Object: Stellar evolution in real time

(Phys.org) —Stellar lifetimes are measured in billions of years, so changes in their appearance rarely take place on a human timescale. Thus an opportunity to observe a star passing from one stage of life ...

Apr 02, 2014
4.7 / 5 (18) 0