The Milky Way gobbled up a galaxy one quarter of its mass 10 billion years ago in a "violent collision" that didn't fully settle for eons, astronomers said in new research published Monday.
Astronomy
1 hour ago
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Is there life on planets outside our solar system? How did stars and galaxies form in the earliest years of the universe? How do black holes shape galaxies?
Astronomy
Jul 19, 2019
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Protesters didn't back down from their long-running effort to stop construction of a $1.4 billion telescope, blocking a road Thursday to the top of a mountain sacred to some Native Hawaiians a day after authorities arrested ...
Environment
Jul 19, 2019
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To send humans to the Moon 50 years ago, an entire nation rose to the challenge. Surmounting countless hurdles, inventing new technologies while staring into the face of the unknown, NASA successfully pioneered multiple lunar ...
Space Exploration
Jul 18, 2019
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Police arrested elderly protesters, some using wheelchairs and canes, as they blocked a road Wednesday to Hawaii's highest peak to try to stop construction of a giant telescope on land some Native Hawaiians consider sacred.
Astronomy
Jul 17, 2019
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Look up on a clear night and you can see some circular formations on the face of our lunar neighbour. These are impact craters, circular depressions found on planetary surfaces.
Space Exploration
Jul 17, 2019
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A team of collaborators from Carnegie and the University of Chicago used red giant stars that were observed by the Hubble Space Telescope to make an entirely new measurement of how fast the universe is expanding, throwing ...
Astronomy
Jul 17, 2019
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Astronomers have indefinitely stopped looking through 13 existing telescopes at the summit of Mauna Kea in Hawaii while protesters block the road downslope in an attempt to prevent the construction of a giant new observatory.
Astronomy
Jul 17, 2019
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Protesters vowed to continue demonstrating against the construction of a giant telescope on top of a mountain some Native Hawaiians consider sacred after they spent the day blocking the road to the project site.
Environment
Jul 16, 2019
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Astronomers have made a new measurement of how fast the universe is expanding, using an entirely different kind of star than previous endeavors. The revised measurement, which comes from NASA's Hubble Space Telescope, falls ...
Astronomy
Jul 16, 2019
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1954
A telescope is an instrument designed for the observation of remote objects by the collection of electromagnetic radiation. The first known practically functioning telescopes were invented in the Netherlands at the beginning of the 17th century. "Telescopes" can refer to a whole range of instruments operating in most regions of the electromagnetic spectrum.
The word "telescope" (from the Greek tele = 'far' and skopein = 'to look or see'; teleskopos = 'far-seeing') was coined in 1611 by the Greek mathematician Giovanni Demisiani for one of Galileo Galilei's instruments presented at a banquet at the Accademia dei Lincei. In the Starry Messenger Galileo had used the term "perspicillum".
This text uses material from Wikipedia, licensed under CC BY-SA
