SpaceTime with Stuart Gary 23 Mar 2018, 08:59 UTC *Steven Hawking’s passing Physicist Steven Hawking dies peacefully at his home aged 76. *Changes in Ceres' Surface Scientists have detected fresh ice on a crater wall on the dwarf planet Ceres. The discovery provides new insights into how materials in Ceres crust are evolving on short timescales. *The star man and the roadster As SpaceX boss Elon Musk’s little red roadster continues its journey towards the orbit of Mars – a new website following the adventures of the sports car and its Stig-like mannequin occupant Star Man -- has done some calculations.
StarDate Online 21 Mar 2018, 05:00 UTC A French satellite that’s small enough to hold in your hand is looking for a big planet to make a move. The planet is expected to pass in front of its star in the next year or so, causing the star’s light to fade a bit. When the satellite sees that happen, it’ll notify a large telescope on the ground, which will study the event in detail. Picsat consists of three cubes stacked together. Combined, they’re a foot tall, and weigh about eight pounds. One of the cubes holds a two-inch telescope.
StarDate Online 20 Mar 2018, 05:00 UTC The next planet hunter is getting ready for launch. It’ll sweep the skies within a few hundred light-years of Earth. Astronomers say its discoveries could include a few hundred worlds that are similar to Earth — about the same size, and at the right distance from their stars to support life.
StarDate Online 19 Mar 2018, 05:00 UTC The Sun will cross a special point in the sky tomorrow. The crossing marks the beginning of spring in the northern hemisphere — the vernal equinox. It also marks the starting point for measuring the length of the year. And for much of human history, it also marked the start of the year — the equinox was New Year’s Day. The equinox probably gained its significance because spring is a time of birth and renewal. The days are getting longer, flowers are beginning to bloom, and other signs of life are popping up. So it made sense that the calendar year would begin then, too. In fact, Britain and its American colonies didn’t switch the start of the year to January 1st until 1752.
SpaceTime with Stuart Gary
21: New studies suggest the Moon has loads of water - SpaceTime with Stuart Gary Series 21 Episode 2119 Mar 2018, 04:02 UTC A new analysis of data from two lunar missions finds evidence that the Moon's water is widely distributed across the surface and not confined to a particular region or type of terrain. The findings indicate that lunar water appears to be present, though it's not necessarily easily accessible.
The Star Spot 19 Mar 2018, 01:00 UTC Last month astronomers announced the first ever discovery of extrasolar planets… in another galaxy! We’ve already confirmed almost 4000 planets beyond our solar system, but these have all been in a single galaxy, the Milky Way. But then last month a serendipitous discovery opened the door to a galaxy 3.8 billion light years away and it turns out it’s home to thousands upon thousands of planets. Today we're joined here at The Star Spot by co-discoverer Xinyu Dai to describe the unplanned discovery and whether this is the beginning of a new era in extrasolar extragalactic planetary astronomy.
StarDate Online 18 Mar 2018, 05:00 UTC The vanishingly thin crescent Moon has a couple of companions after sunset this evening — the planets Venus and Mercury. Venus is the brilliant “evening star,” to the right of the Moon. Much-fainter Mercury is about the same distance to the upper right of Venus. Mercury is tough to see in the early twilight, but its proximity to the brighter lights can help you pick it out.
StarDate Online 17 Mar 2018, 05:00 UTC An owl stares at us from the Big Dipper — the death mask of a star. It consists of several concentric “bubbles” of gas blown into space by the dying star. It’s nice and round, and seen through a large telescope or in photographs, it has two dark patches that look like the eyes of an owl.
Houston, We Have a Podcast 16 Mar 2018, 12:30 UTC Ricky Arnold, NASA Astronaut, talks about his time as an educator, his first flight on the Space Shuttle, and his plans to teach from space during his first long-duration flight on the International Space Station starting on March 21, 2018. HWHAP Episode 36.