In an early morning announcement, the Event Horizon Telescope collaboration finally revealed their first image of Sgr A*, the black hole at the center of the Milky Way galaxy. We have a special episode entirely about this amazing new image and the science behind it. And this week’s What’s Up is a total lunar eclipse.
Stellar formation and evolution data collected from ESA’s Gaia telescope has allowed scientists to create a timeline of the evolution of our own galaxy, the Milky Way. Plus, an ancient ice age, sound on Mars, a new exoplanet, and What’s Up.
For decades, scientists have been trying to work out just how the Earth got all its water, and the prevailing theory was that comets and asteroids brought it, and we have evidence for that mechanic; however, a new hypothesis has provided evidence that the water was already here, locked away in hydrous minerals in a very iron-poor core. Plus, magnetic fields, subatomic particles, life on the ocean floor, a geology mystery solved, and this week in rocket history covers a space shuttle mission with some really neat science.
Recent observations of twelve different stellar streams around the Milky Way have revealed the effects of dark matter, similar to how lights on a Christmas tree reveal the shape of the tree in dark. Plus, globular clusters, volcanoes, and an interview with Dr. Cathy Olkin from the Southwest Research Institute’s Lucy mission.
China’s Chang’e-5 lunar lander has made the first in situ detection of water on the Moon, using reflectance spectroscopy from the surface of our natural satellite. Plus, all the news from the AAS virtual press conferences, including black holes and galaxies.
Dr. Pamela takes a deep dive into her feelings about the JWST, its pending launch, and just what the telescope means to the astronomical community. Plus, general relativity is still true, a huge filament of gas in the Milky Way, and we interview Hamed Valizadegan, project lead for ExoMiner.