News

Hubble finds phantom objects near dead quasars

4 April 2015 Astronomy Now

The NASA/ESA Hubble Space Telescope has imaged a set of enigmatic quasar ghosts — ethereal, looped structures glowing green that orbit their host galaxies marking the graves of quasars that flickered to life and then faded. They offer new insights into the turbulent pasts of these galaxies.

News

BBC Stargazing Live helped amateur astronomers find supernovae

3 April 2015 Astronomy Now

More than 40,000 amateur astronomers working on a supernova hunt run by the Zooniverse team based at the University of Oxford, in collaboration with BBC Stargazing Live, found five supernovae and catalogued two million unidentified heavenly bodies found by the SkyMapper telescope in Australia.

News

Curiosity rover eyes prominent mineral veins on Mars

2 April 2015 Astronomy Now

Two-tone mineral veins at a site NASA’s Curiosity rover has reached by climbing a layered Martian mountain offer clues about multiple episodes of fluid movement. These episodes occurred later than the wet environmental conditions that formed lake-bed deposits the rover examined at the mountain’s base.

Observing

Follow Comet Lovejoy into the high north during April

1 April 2015 Ade Ashford

Comet Lovejoy continues its northerly trek through Cassiopeia, en route to a close encounter with Polaris on May 27th. A circumpolar object of the high north, the comet never sets as seen from the British Isles this month — what’s more, it’s brighter than predicted.