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Combining early Universe constraints with DES Y3 cosmic shear data yields a nearly 3σ preference for non-zero DM–neutrino interactions.

Six planets will be visible in the night sky at the end of February, and most can be seen with the naked eye.

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Diagram illustrating various phases of the Moon in their order of appearance starting from the New Moon and progressing through Crescent, First Quarter, and Gibbous to reach the Full Moon. It is followed by Gibbous, Last Quarter and Crescent to complete full circle at the New Moon again.

The gray circle around the Earth shows the Moon's orbit. The dotted gray line illustrates moon's trajectory. The solid ivory line passing through the earth is indicative of Earth's orbit around the Sun. Notice that this graphical representation can be misleading, as the Earth & Moon's path around the Sun is actually always concave towards the Sun[1].

Author: Fresheneesz~commonswiki

CC BY 2.5

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cross-posted from: https://sopuli.xyz/post/41171318

Over the past 30 years, astronomers have cataloged about 4,000 Kuiper Belt objects (KBOs), including a smattering of dwarf worlds, icy comets, and leftover planet parts. But that number is expected to increase tenfold in the coming years as observations from more advanced telescopes pour in.

In particular, the Vera C. Rubin Observatory in Chile will illuminate this murky region with its flagship project, the Legacy Survey of Space and Time (LSST), which began operating last year. Other next-generation observatories, such as the James Webb Space Telescope (JWST), will also help to bring the belt into focus.

“Beyond Neptune, we have a census of what’s out there in the solar system, but it’s a patchwork of surveys, and it leaves a lot of room for things that might be there that have been missed,” says Renu Malhotra, who serves as Louise Foucar Marshall Science Research Professor and Regents Professor of Planetary Sciences at the University of Arizona.

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