ESO

Pulsating star mystery solved

(PhysOrg.com) -- By discovering the first double star where a pulsating Cepheid variable and another star pass in front of one another, an international team of astronomers has solved a decades-old mystery. ...

Nov 24, 2010
4.9 / 5 (21) 5 | with audio podcast

The anatomy of an asteroid

ESO's New Technology Telescope has been used to find the first evidence that asteroids can have a highly varied internal structure. By making measurements astronomers have found that different parts of the ...

Feb 05, 2014
4.6 / 5 (21) 18 | with audio podcast

Exoplanets Clue to Sun's Curious Chemistry

(PhysOrg.com) -- A ground-breaking census of 500 stars, 70 of which are known to host planets, has successfully linked the long-standing "lithium mystery" observed in the Sun to the presence of planetary systems. ...

Nov 11, 2009
4.6 / 5 (21) 15

50 new exoplanets discovered by HARPS

Astronomers using ESO's world-leading exoplanet hunter HARPS have today announced a rich haul of more than 50 new exoplanets, including 16 super-Earths, one of which orbits at the edge of the habitable zone ...

Sep 12, 2011
4.8 / 5 (17) 14 | with audio podcast

Beta Pictoris planet finally imaged?

(PhysOrg.com) -- The hot star Beta Pictoris is one of the best-known examples of stars surrounded by a dusty 'debris' disc. Debris discs are composed of dust resulting from collisions among larger bodies like ...

Nov 21, 2008
4.9 / 5 (16) 1