Seafloor Spreading Slowing Globally
An analysis of the relative movements of 18 tectonic ridges over the past 19 million years finds that the rate of seafloor spreading has dropped by about 40% on average globally. Plus, stars are getting naked, climate change is heating things up, and we review “Impact: How Rocks from Space Led to Life, Culture, and Donkey Kong” by Greg Brennecka.
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Gravitational wave event leads to detection of object in “mass gap” and corresponding light detection
For today, both stories are related to the detection of gravitational wave events and are believed to be caused by the merger of massive objects far off in the universe.
Rocket Roundup for June 24, 2020
Join us for this week’s Rocket Roundup with host Annie Wilson as we look back at two Chinese rocket launches this past week, including one we actually got to livestream!
Pluto gets a hot start; Breakthrough Listen makes a catalogue; TESS data yields a very young hot Jupiter
Join us today as we look at New Horizons images of Pluto for evidence of how the planet’s icy ocean formed. We also discuss Breakthrough Listen’s announcement of a new catalogue of “exotic” targets. And finally, we share the news that a very young hot Jupiter close to its star was found in TESS data.
X-ray view of the sky; Hubble images planetary nebulae; Planets form more quickly than previously thought
Join us today as we take a look at an amazing all-sky view done in x-ray wavelengths. We also get to see gorgeous images Hubble took of planetary nebulae that show wild processes going on. And finally, we learn that planets form much more quickly than previously thought.
Supernova in a lab; Organic molecules in a molecular cloud; Particle interactions in a dark matter detector
Join us today while we take a look at a laboratory recreation of a supernova. We’ll also talk about the discovery of another amino acid precursor molecule in an interstellar cloud. Finally, we call attention to news that a dark matter detector has possibly seen some weird particle interactions and what that could mean.
Rocket Roundup for June 17, 2020
Join us for this week’s Rocket Roundup with host Annie Wilson, where we’ll watch China launch an oceanography satellite, Rocket Lab launch an Electron rocket called “Don’t Stop Me Now”, and SpaceX launch even more Starlink satellites (plus a few hitchhiking SkySats).