In three new papers released this week, scientists analyzed data from NASA’s InSight lander to reveal the structure of Mars and its layers, revealing information about the planet’s crust, lithosphere, mantle, and core. Plus, isotopes in an exoplanet’s atmosphere, a potential exomoon being formed, the heart of a radio galaxy, and black holes impeding stellar birth.
In a new paper, a renowned physicist’s overview of recent observations shows that the gap in the universe expansion calculations is closing. The Standard Model may be fine after all. Plus, Mars’ methane mystery, an orphan cloud, galaxies moving to collide, and an interview with PSI’s Than Putzig about just what is under Mars’ south polar ice cap.
About 900 million miles away in two different galaxies, a black hole and a neutron star merged, and their gravitational waves have been detected here on Earth. These detections add another type of merger to the collection so far discovered. Plus, new composition data on Mars’ south polar cap and a look back at the Tunguska Event. #AsteroidDay
Two seemingly unrelated stars, each with several exoplanets, turn out to be members of an enormous, diffuse star cluster. Plus, baby squid go to the ISS, new images from China’s Zhurong rover, a brightening blazar, and an interview with scientist Sophia Gad-Nasr and artist Cathrin Machin about how art and science work together.
The most precise measurements of the universe’s composition and growth have been reported in almost thirty new papers based on Dark Energy Survey observations of 229 million galaxies and covering one-eighth of the sky. Plus, stories from the first day of the AAS conference, all the volcanoes, and mission updates.
Jupiter’s moon Europa, an icy world with a subsurface ocean that interests astrobiologists, may actually be hot enough to melt the interior rock and create volcanoes on the ocean floor. Plus, Ryugu, giant planets, fossil discoveries, Martian glaciers, and this week’s What’s Up!