Revealing spacecraft geometry effects on impact simulations for NASA’s DART mission

The same DART spacecraft impact can result in very different craters on Dimorphos depending on what the asteroid material is like. The crater on the left is the result if Dimorphos is composed of strong rocky material, while the much larger crater shown on the right could occur if the Dimorphos is made up of … Read more

Gaia mission: 5 revealing insights from its latest data

This article was originally published at The Conversation. (opens in new tab) The contributed the article to’s Expert Voices: Op-Ed & Insights. Adam McMaster (opens in new tab)PhD Candidate, Astronomy, The Open UniversityAndrew Norton (opens in new tab)Professor of Astrophysics Education, The Open University The European Space Agency’s (ESA) Gaia mission has just released … Read more

Lake Michigan levels dropping, revealing how much work is needed to repair Chicago’s eroded beaches

Credit: Unsplash/CC0 Public Domain Giant concrete barriers separate a field of jagged rocks from a grassy playground at Rogers Park Beach on Lake Michigan. There is no white sand. Only “do not swim” signs spray-painted on the uninviting blocks. The city filled in the beach along with three others in the same half-mile stretch after … Read more

How new technology is revealing the secrets of an under-researched undersea world

by James Bell, Alice Rogers, Francesca Strano and Valerio Micaroni, The Conversation Credit: Unsplash/CC0 Public Domain Despite New Zealanders’ close connection with the oceans, very few will have heard of “temperate mesophotic ecosystems” (TMEs). Even fewer will appreciate their importance for coastal fisheries, and possibly climate change mitigation. TMEs typically occur at depths of between … Read more

Scientists model landscape formation on Titan, revealing an Earth-like alien world — ScienceDaily

Saturn’s moon Titan looks very much like Earth from space, with rivers, lakes, and seas filled by rain tumbling through a thick atmosphere. While these landscapes may look familiar, they are composed of materials that are undoubtedly different — liquid methane streams streak Titan’s icy surface and nitrogen winds build hydrocarbon sand dunes. The presence … Read more