SpaceTime with Stuart Gary
74: How asteroid impacts shaped Earth’s ancient geology - SpaceTime with Stuart Gary Series 21 Episode 7420 Sep 2018, 11:52 UTC A new study has found that some of the oldest rocks on the planet are the result of asteroids slamming into the primordial Earth causing its crust to melt.
StarDate Online 20 Sep 2018, 05:00 UTC Fall arrives in the northern hemisphere this weekend. It’s the autumnal equinox — the point at which the Sun crosses the equator from north to south. You probably noticed that we used two names for the season: fall and autumn. In the modern world, it’s the only season with more than one common name.
StarDate Online 19 Sep 2018, 05:00 UTC A star system in the constellation Andromeda is always hoppin’. Its two stars interact with each other, triggering brilliant outbursts. Z Andromedae consists of two stars locked in a mutual orbit. In fact, it’s the prototype of a broad class of binaries, known as symbiotes because they interact with each other.
NASACast Audio 18 Sep 2018, 19:47 UTC NASA in Silicon Valley Live is a talk show that features conversations with scientists, researchers, engineers and all-around cool people who work at NASA to push the boundaries of innovation. In this episode streamed on Sept. 13, 2018, we talk about studying life in space. Plus, we share some genius space hacks for doing life science research on Earth and aboard the International Space Station.
StarDate Online 18 Sep 2018, 05:00 UTC The Milky Way galaxy and its nearest big neighbor, the Andromeda galaxy, are like two children on a see-saw: They’re up and down. Both are giant spiral galaxies. Andromeda is about two-and-a-half million light-years away, in the constellation Andromeda. Under dark skies, it’s just visible as a hazy smudge of light — the farthest object that most people can see with their eyes alone.
NASACast Audio 11 Sep 2018, 17:06 UTC You’d think that because it rises and sets predictably every day, we’d know everything there is to know about our Sun. But that’s not the case. The Sun constantly outgasses the solar wind, but also periodically belches huge blobs of plasma, energetic particles, and magnetic fields that can wreak havoc on Earth’s communications networks and other electrical systems.