Search Publications
HCN ice in Titan's high-altitude southern polar cloud
Maltagliati, Luca; Vinatier, Sandrine; de Kok, Remco J. +2 more
Titan's middle atmosphere is currently experiencing a rapid change of season after northern spring arrived in 2009 (refs 1, 2). A large cloud was observed for the first time above Titan's southern pole in May 2012, at an altitude of 300 kilometres. A temperature maximum was previously observed there, and condensation was not expected for any of Ti…
Reflection from the strong gravity regime in a lensed quasar at redshift z = 0.658
Miller, J. M.; Reis, R. C.; Walton, D. J. +1 more
The co-evolution of a supermassive black hole with its host galaxy through cosmic time is encoded in its spin. At z > 2, supermassive black holes are thought to grow mostly by merger-driven accretion leading to high spin. It is not known, however, whether below z ~ 1 these black holes continue to grow by coherent accretion or in a chaotic manne…
Two γ-ray bursts from dusty regions with little molecular gas
Kohno, K.; Nakanishi, K.; Tamura, Y. +4 more
Long-duration γ-ray bursts are associated with the explosions of massive stars and are accordingly expected to reside in star-forming regions with molecular gas (the fuel for star formation). Previous searches for carbon monoxide (CO), a tracer of molecular gas, in burst host galaxies did not detect any emission. Molecules have been detected as ab…
Comet craft ready to wake
Gibney, Elizabeth
Stakes high as European Space Agency waits for Rosetta orbiter to come out of hibernation.
Philae’s 64 hours of comet science yield rich data
Gibney, Elizabeth
Comet lander is now hibernating, but has already altered our understanding of these objects.
Landing on a comet: A guide to Rosetta’s perilous mission
Gibney, Elizabeth
A graphical guide identifies the dangers ahead for the Philae probe.
Lander to aim for comet’s ‘head’
Gibney, Elizabeth
Touchdown site for Rosetta probe chosen unanimously.
Philae lander: Rename comet probe after Greek hero
Fisher, Len