The magnificent spiral galaxy M99 fills the frame in this image from the NASA/ESA Hubble Space Telescope. M99—which lies roughly 42 million light-years from Earth in the constellation Coma Berenices—is a "grand design" ...
Astronomy
May 9, 2022
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Planetary systems form out of disks of gas and dust around young stars. How the formation proceeds, however, is complex and poorly understood. Many physical processes are involved including accretion onto the star, photoevaporation ...
Astronomy
Dec 8, 2017
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The formation of a star has a simple tale. A region of interstellar gas collapses under its own weight, eventually forming a dense protostar surrounded by a disk of gas and dust. The protostar and the disk rotate in the same ...
Astronomy
Jan 13, 2023
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ALMA (Atacama Large Millimeter/submillimeter Array) has demonstrated the highest resolution yet with observations of an old star. The observations show that the star is surrounded by a ring-like structure of gas and that ...
Astronomy
Nov 15, 2023
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The Atacama Large Millimeter/submillimeter Array (ALMA) has just received a "heart transplant," high in the Atacama Desert in Northern Chile. ALMA, the most complex astronomical observatory ever built on Earth, installed ...
Astronomy
Feb 7, 2024
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Astronomers have discovered a so-called proto-disc around the proto-brown dwarf Mayrit. With this discovery, they were able to confirm for the first time that this celestial body was formed in the same way as sun-like stars.
Astronomy
May 21, 2019
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In the discs of dust and gasses around young stars, mysterious structures occur. Together with professor Ewine van Dishoeck, Ph.D. student Paolo Cazzoletti investigate how we can explain these forms, such as rings, spirals ...
Astronomy
Dec 13, 2019
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10
(Phys.org) —Ten years ago, eight antennas on the summit of Mauna Kea, Hawai'i, united to form a telescope unlike any other. Since then the Submillimeter Array (SMA) has examined the universe in unprecedented detail and ...
Astronomy
Jun 25, 2014
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