Will you see thousands of meteors during the 201 Leonid meteor shower? Doubtful. But you might see a good sprinkling of meteors before dawn November 17 and 18. Source: https://earthsky.org/tonight/radiant-point-for-leonid-meteor-shower…
Tag: Shape
Hologram-Like Device Animates Objects Using Ultrasound Waves
An anonymous reader quotes a report from The Guardian: Researchers in Southampton have built a device that displays 3D animated objects that can talk and interact with onlookers. A demonstration of the display showed a butterfly flapping its wings, a countdown spelled out by numbers hanging in the air, and a rotating, multicolored planet Earth. Beyond interactive digital signs and animations,…
Shape of the universe: study could force us to rethink everything we know about the cosmos
No matter how elegant your theory is, experimental data will have the last word. Observations of the retrograde motion of the planets were fundamental to the Copernican revolution, in which the sun replaced Earth at the centre of the solar system. And the unusual orbit of Mercury provided a spectacular confirmation of the theory of general relativity. In fact, our entire…
Ultima Thule renamed to avoid Nazi link
The distant Kuiper Belt object formerly known as 2014 MU69 – later known as Ultima Thule – has been renamed again. Its new name is Arrokoth. Source: https://earthsky.org/space/ultima-thule-renamed-to-avoid-nazi-link…
What Shape Is the Universe? A New Study Suggests We’ve Got It All Wrong
An anonymous reader quotes Quanta magazine: A provocative paper published in the journal Nature Astronomy argues that the universe may curve around and close in on itself like a sphere, rather than lying flat like a sheet of paper as the standard theory of cosmology predicts. The authors reanalyzed a major cosmological data set and concluded that the data favors a…
Is Hygiea now the smallest dwarf planet?
New images from ESO’s Very Large Telescope show that asteroid Hygiea is round, meaning that it may now be classified as the smallest-known dwarf planet in our solar system. Source: https://earthsky.org/space/asteroid-hygiea-smallest-known-dwarf-planet-very-large-telescope-eso…
TESS spacecraft is finding hundreds of exoplanets
… and it’s poised to find thousands more. But will we find another Earth? Source: https://earthsky.org/space/tess-spacecraft-finding-exoplanets…