There are currently about fifty known exoplanets whose diameters range from Mars-sized to several times the Earth's and which also reside within their stars' habitable zone – the orbital distance within which their surface ...
Astronomy
Jun 29, 2018
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128
Interstellar comet 2I/Borisov is providing a glimpse of another star system's planetary building blocks, using new observations from NASA's Hubble Space Telescope.
Astronomy
Apr 20, 2020
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559
Astronomers frequently observe carbon monoxide in planetary nurseries. The compound is ultra-bright and extremely common in protoplanetary disks—regions of dust and gas where planets form around young stars—making it ...
Astronomy
Aug 22, 2022
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468
(Phys.org)—Astronomers using the Atacama Large Millimeter/submillimeter Array have for the first time found that the outer region of a dusty disc encircling a brown dwarf contains millimetre-sized solid grains like those ...
Astronomy
Nov 30, 2012
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0
A nearby dwarf galaxy poses an intriguing mystery: How is it able to form brilliant star clusters without the dusty, gas-rich environments found in larger galaxies? The answer, astronomers believe, lies in densely packed ...
Astronomy
Sep 9, 2015
39
770
(Phys.org) —A survey from Herschel has revealed that the reservoir of molecular gas in the Milky Way is hugely underestimated - almost by one third - when it is traced with traditional methods. Monitoring the emission from ...
Astronomy
Jun 11, 2013
6
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(Phys.org)—Every six seconds, for millions of years, comets have been colliding with one another near a star in the constellation Cetus called 49 CETI, which is visible to the naked eye.
Astronomy
Nov 8, 2012
5
1
The weather in your hometown is downright uninhabitable. There's scorching heatwaves, annual tyhpoonic deluges, and snow deep enough to bury a corn silo.
Astronomy
Jun 30, 2015
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75
Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) found a young star surrounded by an astonishing mass of gas. The star, called 49 Ceti, is 40 million years old and conventional theories of planet ...
Astronomy
Dec 23, 2019
10
262
(Phys.org) —An alien world reported to be the first known planet to consist largely of diamond appears less likely to be of such precious nature, according to a new analysis led by UA graduate student Johanna Teske.
Astronomy
Oct 8, 2013
1
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