An artist’s concept shows a celestial body about the size of our moon slamming at great speed into a body the size of Mercury. NASA/JPL-Caltech Instead of core formation occurring by iron sinking down to the growing Earth’s core in large blobs, that iron was vaporized, spread out in a plume over the surface of …
Iron rain fell on early Earth, new Z machine data supports Read More »
The HAC Committee members are(back from left): Peter Harvey, Derek Duckitt, Jenny Moris, Johan Retief, Lynette Geldenhuys and Fanie Lombard. Front: Pierre de Villiers (chairperson) and Deon Krige. Absent: Laura Norris. photo: jan-hendrik coetzer By Jan-Hendrik Coetzer Photo : jan-hendrik coetzer 2014-11-28 Prof Patrick Woudt, incoming head of the University of Cape Town’s(UCT) Department of …
An artist’s portrayal of the moment when Rosetta’s Philae lander touches down on Comet 67P/Churyumov-Gerasimenko. ESA / ATG medialab – Days from now, the Philae lander will drop onto Comet 67P/Churyumov-Gerasimenko. In the meantime, the “mother ship” Rosetta is watching the icy nucleus — and smelling the mix of gases escaping from it. In less …
Astronomers using NASA’s Hubble Space Telescope have unexpectedly discovered the most distant galaxy that acts as a cosmic magnifying glass. Seen here as it looked 9.6 billion years ago, this monster elliptical galaxy breaks the previous record-holder by 200 million years. These “lensing” galaxies are so massive that their gravity bends, magnifies, and distorts light …
Hubble Shows Farthest Lensing Galaxy Yields Clues to Early Universe Read More »
Created using observations from Hubble’s Frontier Fields observing program, the map shows the amount and distribution of mass within MCS J0416.1–2403. By Hubble ESA, Garching, Germany | Published: Thursday, July 24, 2014 Astronomers using the NASA/ESA Hubble Space Telescope have mapped the mass within a galaxy cluster more precisely than ever before. Created using observations …
New mass map of a distant galaxy cluster is the most precise yet Read More »
