The Barringer meteor crater is an iconic Arizona landmark, more than 1km wide and 170 metres deep, left behind by a massive 300,000 tonne meteorite that hit Earth 50,000 years ago with a force equivalent to a ten megaton nuclear bomb. The forces unleashed by such an impact are hard to comprehend, but a team …[Read More]
The joint NASA-ESA Cassini space probe, exploring Saturn and her moons, has revealed extraordinary lakes and seas of liquid methane around the north pole of Titan. Scientists associated with the Cassini mission described a strange rectangular area of large seas, picked out by imaging instruments aboard the probe. I heard all about it at the …[Read More]
Croudsourced data from dash-cams, videos and photos reveal the secrets of the Chelyabinsk asteroid. Credit: Alexeya The asteroid impact that burst over Chelyabinsk, Russia, on the morning of February 15 has provided a huge collection of new data that scientists have been analysing since. This week, three papers, two in Nature and one in …[Read More]
At the summit of Mauna Kea, Hawaii, the National Astronomical Observatory of Japan’s (NAOJ) Subaru Telescope has been turning its attention to distant worlds. Latest reports of blue-light observations from the telescope indicate that a super-Earth called Gilese 1214b (GJ 1214 b) appears to have a water-rich atmosphere. GJ 1214 b sits forty light years …[Read More]
