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A New Class of Star: Merger Remnant
Sometimes it can seem like science has Nature all figured out. In mainstream press, that idea is hard to avoid, even if it’s never stated overtly. But scientists, and maybe astronomers especially, see things differently. When you’re a scientist you understand better than most that our names for things like types of stars or stellar
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A Mercury Rover Could Explore the Planet by Sticking to the Terminator
The closest planet to our Sun, Mercury, experiences extreme temperature variations. Since the planet has no atmosphere to speak of, it is in a constant cycle of where one side is extremely hot and the other extremely cold. On the Sun-facing side, temperatures reach a scorching 427 °C (800 °F), enough to melt tin and
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Webb’s Picture of the Month Features Two Planet-Forming Disks and a Possible Planet
The James Webb Space Telescope’s (JWST) picture of the month shows Tau 042021 (left) and Oph 163131 (right), two protoplanetary disks located about 450 and 480 light-years from Earth in the constellations Taurus and Ophiuchus (respectively). These disks are composed of material left over from the formation of new stars, which coalesce into planetesimals that
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