A new theory has been proposed that could answer the question of what causes recurring landslides on Mars: small-scale ice melting just below the surface may leave the regolith vulnerable to wind. Plus, a look at some of Earth’s ancient climate changes, a gamma-ray source, puffy galaxies, and this week’s What’s Up.
A radio-loud magnetar first observed in March 2020 suffered an apparent identity crisis, behaving like a pulsar until gradually settling into magnetar-like emissions in July. Plus, Mars’ moon Phobos, Jupiter’s moon Ganymede, and an interview with SETI Institute scientist Veselin Kostov about last week’s sextuple star system.
A new system has been found that consists of six stars in three binary pairs, which are producing a bevy of eclipses with each other. They were found in TESS data with the help of machine learning. Plus, Venus, more exoplanet news, difficulties with the record of early life, and a look back at Marie Tharp’s groundbreaking work.
Dark matter is only acted upon by the force of gravity according to new research, which constrains the potential range of mass for the elusive particles. Plus, how precipitation affects the Earth’s crust, a pair of ancient asteroid impacts in Germany, NASA’s Day of Remembrance, and this week’s What’s Up.
Join us for this week’s Rocket Roundup with host Annie Wilson as we look back at the launches that happened over the last week, including one Rocket Lab and two SpaceX… wait, more Starlink? *checks notes* Yes, more Starlink.
It’s a day ending in ‘y’, and planetary formation theories are once again being challenged. This time the challenge comes from a six-planet system with five planets in resonance. Plus a cloudless Jupiter, TRAPPIST-1, volcanoes, and some science of the weird.
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