SpaceTime with Stuart Gary 20 Apr 2018, 12:33 UTC Astronomers are back in the dark about what dark matter might be, after new observations have shown that it’s not interacting with forces other than gravity after all. The findings add more mystery to the enigma of dark matter – an invisible substance which makes up over 80 percent of all the matter in the universe.
Hubblecast HD 19 Apr 2018, 14:00 UTC On 24 April 1990, Hubble was launched into space. To celebrate its 28th year in orbit, some of Hubble’s precious observation time was used to observe the colourful Lagoon Nebula. One of only two star-forming nebulae visible to the unaided eye, this spectacular stellar nursery is not quite the tranquil landscape its name suggests. This new Hubblecast explores the image in more detail and shows some of the delicate features of this cosmic lagoon.
SpaceTime with Stuart Gary 18 Apr 2018, 11:52 UTC Astronomers peering deep into the violent heart of a supernova debris field have discovered a slowly expanding torus shaped cloud of oxygen and neon surrounding a young neutron star. The findings provide new insights into the processes involved in the explosive deaths of massive stars through core collapse supernovae.
StarDate Online 16 Apr 2018, 05:00 UTC The word “planet” comes from a Greek word that means “wanderer.” The title was bestowed because, over time, each of the bright planets moves against the background of “fixed” stars.Occasionally, though, a planet stops wandering and stands still against that background — it’s stationary.
StarDate Online 14 Apr 2018, 05:00 UTC Many stars have beautiful, even romantic names, such as Antares and Aldebaran, Vega and Altair. But some stars have names that aren’t romantic at all. Instead, they’re downright funny. Two examples shine faintly in the southern constellation Lupus, the wolf. Many star names incorporate the genitive case of their constellation. That’s why the brightest star in Centaurus is not Alpha Centaurus, but instead Alpha Centauri.
SpaceTime with Stuart Gary
29: Tens of thousands of black holes in Milky Way's centre - SpaceTime with Stuart Gary Series 21 Episode 2913 Apr 2018, 08:54 UTC Astronomers have detected a dozen stellar mass black holes orbiting close to the supermassive black hole -- Sagittarius A* -- at the centre of the Milky Way Galaxy. The findings support a decades-old hypothesis that there should be tens of thousands of stellar mass black holes at the galactic centre.
StarDate Online 12 Apr 2018, 05:00 UTC The hottest and brightest stars in the galaxy also are the rarest — they account for about one of every 10 million stars. Yet they’re so dazzling that several of them are visible to the unaided eye.Astronomers classify these stars as class “O.” They’re at the top of a system that uses the letters O, B, A, F, G, K, and M.
SpaceTime with Stuart Gary 11 Apr 2018, 11:42 UTC Stream on demand from www.bitesz.com (mobile friendly). *Mysterious signals from the galactic centre Astronomers have discovered that a mysterious gamma-ray signal being emitted from the centre of the Milky Way galaxy is most likely being generated by rapidly spinning neutron stars. The findings solve a long standing mystery about the origins of these strange signals. *Is the Milky Way galaxy getting bigger New research suggests the Milky Way Galaxy is getting bigger. The findings indicate that the galaxy is expanding by a rate of about half a kilometre per second. *Could life exist in the clouds of Venus Scientists are speculating as to whether life could exist in the dense atmospheric clouds of Venus. The hypothesis follows the discovery of microbial life in Earth’s atmosphere. *Virgin Galactic completes first powered test flight Richard Branson says Virgin Galactic will soon be back on schedule following the successful completion of the first powered test flight of the VSS Unity spacecraft. The flight came two and a half years after the fatal mid-air break-up that destroyed the VSS Enterprise. *Ariane 5 DSN-1/Superbird-8 LAUNCH An Ariane 5 rocket has placed two new telecommunications satellites into orbit. *SpaceX launches ten Iridium satellites SpaceX has launched ...