ESOcast 16 Aug 2017, 17:00 UTC Observations of “Jellyfish galaxies” with ESO’s Very Large Telescope have revealed a previously unknown way to fuel supermassive black holes. It seems the mechanism that produces the tentacles of gas and newborn stars that give these galaxies their nickname also makes it possible for the gas to reach the central regions of the galaxies, feeding the black hole that lurks in each of them and causing it to shine brilliantly.
SpaceTime with Stuart Gary 16 Aug 2017, 06:09 UTC Stream episodes on demand from www.bitesz.com (mobile friendly) Today’s episode of SpaceTime with Stuart Gary is bought to you by Audible. Grab a free book and 30 days free trial, plus help support SpaceTime by visiting www.audibletrial.com/spacetime Another way to help support SpaceTime, become a patron for as little as $3 per month. And we have rewards. Check out the details at https://www.patreon.com/spacetimewithstuartgary * Galaxies at the cosmic dawn Astronomers have peered back to the dawn of time -- discovering 23 young galaxies, seen as they were just 800 million years after the Big Bang. The findings reported in the Astrophysical Journal represent one of the deepest ever observations into the 13.8 billion year old universe. *Cassini begins its final orbits around Saturn NASA's Cassini spacecraft has entered new territory in its final mission phase, the grand finale, as embarks on a set of ultra-close passes through Saturn's upper atmosphere with its final five orbits around the ringed world. Cassini completed the first of these five passes over Saturn on Monday. *The ancient Earth was a water world A new analysis of mineral grains indicates that the ancient Earth was most likely a water world -- barren, flat, and almost ...
NASA's Jet Propulsion Laboratory Video and Audio Podcasts 11 Aug 2017, 07:00 UTC Saturn's giant, hazy moon Titan has been essential to NASA's Cassini mission during its 13 thrilling years of exploration there.
SpaceTime with Stuart Gary
An Earth-like atmosphere may not survive Proxima b's orbit - SpaceTime with Stuart Gary Series 20 Episode 6311 Aug 2017, 06:31 UTC Stream episodes on demand from www.bitesz.com (mobile friendly) * An Earth-like atmosphere may not survive Proxima b's orbit Proxima B -- the nearest known exoplanet to our solar system is probably a dead world despite being in the habitable zone of its host star Proxima Centauri. Any Earth sized world would most likely be unable to hold onto an atmosphere -- leaving its surface exposed to harmful stellar radiation and reducing its potential for habitability. *New clues in determining the size of a black hole Astronomers have discovered what could be an easy way to determine the size of a spiral galaxy’s supermassive black hole. They’ve found a direct relationship between the geometry of some types of spiral galaxies and the hidden super massive black hole at their centres. *Calm seas on Titan could mean smooth landing for future space probes Astronomers have determined that the lakes and seas on the Saturnian moon Titan have few waves higher than a centimetre. The findings mean the giant moon probably has little wind – the primary driving force for waves on the oceans of Earth. *Huge storm on Neptune Astronomers have detected a massive storm as big as the Earth on the ...
ESOcast 9 Aug 2017, 10:00 UTC A new analysis of data from ESO’s Very Large Telescope and other telescopes suggests that the orbits of stars around the supermassive black hole at the centre of the Milky Way show the subtle effects predicted by Einstein’s general theory of relativity.
SpaceTime with Stuart Gary
New evidence supporting supernova shock wave theory of solar system's origins - SpaceTime with Stuart Gary Series 20 Episode 629 Aug 2017, 05:22 UTC Help support SpaceTime by becoming a patron...and we have rewards for you. Do your bit to keep Stuart fed and housed... details at our Patreon page... https://www.patreon.com/spacetimewithstuartgary Stream episodes on demand from www.bitesz.com (mobile friendly) *New evidence supporting supernova shock wave theory of solar system's origins Astronomers have found more evidence supporting the longstanding theory that our solar system’s formation 4.6 billion years ago -- was triggered by a shock wave from an exploding supernova. The study based on evidence of the iron 60 isotopes in meteorites indicate that a supernova shock wave is still the most-plausible origin story for explaining the short lived radioactive isotopes in our Solar System *A new window in the hunt for molecular signatures in deep space Astronomers have begun using one of the precursor radio telescopes for the Square Kilometre Array project to study molecular signatures which could lead to the detection of complex molecules that are precursors to life. The team are using the Murchison Widefield Array to undertake the observations focusing on the molecular gas and dust clouds from which new generations of stars are born. *New clues about superluminous supernovae Astronomers have detected an extraordinarily bright supernova in a surprising location. ...
Astronomy.FM 5 Aug 2017, 02:43 UTC This Month Nick Evetts, Mary McIntyre and Neil Norman talk about the discoveries and current Comets and Welcome our Guest Jeff Tobak of Northolt Astro and we discuss Comet Imaging and Observing. BAA Comet Section Visual Observations Page BAA Comet Section page Jeff’s set up http://astrodon.com/store/p10/Astrodon_Photometrics_UVBRI_Filters.html Atik 383L + http://mainsequencesoftware.com/Products/SGPro 128P/Shoemaker-Holt 1 Project Alcock The German Comet Group Seiichi Yoshida’s page Liga Iberoamericana de Astronomia Comet chasing International Comet Quarterly Cometbase BAA YouTube Channel The Astronomer The Astronomer Youtube Channel