Once upon a cosmic time, scientists assumed that stars apply an eternal magnetic brake, causing an endless slowdown of their rotation. With new observations and sophisticated methods, they have now peeked into a star's magnetic ...
Astronomy
Jan 10, 2024
1
170
In 2009 a giant star 25 times more massive than the sun simply vanished. OK, it wasn't quite that simple. It underwent a period of brightening, increasing in luminosity to a million suns, just as if it was ready to explode ...
Astronomy
Oct 4, 2023
0
28
Astronomers using W. M. Keck Observatory on Maunakea in Hawaiʻi have discovered that aurorae at visible wavelengths appear on all 4 major moons of Jupiter: Io, Europa, Ganymede, and Callisto.
Astronomy
Feb 16, 2023
0
264
A rare, recently discovered comet with a greenish tint is expected to whiz by Earth over the next few weeks, but sky gazers may need binoculars or a small telescope to see it.
Astronomy
Jan 16, 2023
0
102
An international research team led by the University of Minnesota Twin Cities has measured the size of a star dating back 2 billion years after the Big Bang, or more than 11 billion years ago. Detailed images show the exploding ...
Astronomy
Nov 9, 2022
0
781
Better catch the moon's disappearing act Tuesday—there won't be another like it for three years.
Space Exploration
Nov 7, 2022
0
1249
Stargazers across the globe will get a great view of Jupiter come Monday night, weather permitting.
Astronomy
Sep 23, 2022
0
283
Astronomers are buzzing after observing the fastest nova ever recorded. The unusual event drew scientists' attention to an even more unusual star. As they study it, they may find answers to not only the nova's many baffling ...
Astronomy
Jun 14, 2022
0
523
Italian astronomers have performed X-ray observations of the massive galaxy cluster ClG-J104803.7+313843, using ESA's XMM-Newton spacecraft. Results of the observational campaign, presented November 26 on arXiv.org, shed ...
A near-Earth asteroid named Kamo`oalewa could be a fragment of our moon, according to a new paper published in Nature Communications Earth and Environment by a team of astronomers led by the University of Arizona.
Planetary Sciences
Nov 11, 2021
2
310
Binoculars, field glasses or binocular telescopes are a pair of identical or mirror-symmetrical telescopes mounted side-by-side and aligned to point accurately in the same direction, allowing the viewer to use both eyes (binocular vision) when viewing distant objects. Most are sized to be held using both hands, although sizes vary widely from opera glasses to large pedestal mounted military models. Many different abbreviations are used for binoculars, including glasses, nocs, noculars, binos and bins.
Unlike a (monocular) telescope, binoculars give users a three-dimensional image: for nearer objects the two views, presented to each of the viewer's eyes from slightly different viewpoints, produce a merged view with an impression of depth.
This text uses material from Wikipedia, licensed under CC BY-SA
