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Artist’s concept of a Neptune-sized planet, left, around a blue, A-type star. UC Berkeley astronomers have discovered a hard-to-find gas giant around one of these bright, but short-lived, stars, right at the edge of the hot Neptune desert where the star’s strong radiation likely strips any giant planet of its gas.

Brightest stars in the night sky can strip Neptune-sized planets to their rocky cores

Categories Physics & Mathematics, Space

Scientists studying the young star AS 209 have detected gas in a circumplanetary disk for the first time, which suggests the star system may be harboring a very young Jupiter-mass planet. Science images from the research show (right) blob-like emissions of light coming from otherwise empty gaps in the highly-structured, seven-ring disk (left).

First-ever detection of gas in a circumplanetary disk

National Radio Astronomy Observatory

Categories Physics & Mathematics, Space

Simulation of a star-forming region, where massive stars destroy their parent cloud.

Stars determine their own masses

Northwestern University

Categories Physics & Mathematics, Space

This artist's conception shows the merger between a neutron star and another star (seen as a disk, lower left) which caused an explosion resulting in the short-duration gamma-ray burst, GRB 211106A (white jet, middle), and left behind what scientists now know to be one of the most luminous afterglows on record (semi-spherical shock wave mid-right). Credit: ALMA (ESO/NAOJ/NRAO), M. Weiss (NRAO/AUI/NSF)

Hulk time: Flash is one of biggest gamma-ray bursts ever observed

Northwestern University

Categories Space, Technology

The green region represents the habitable zone where liquid water can exist on the planetary surface. The planetary orbit is shown as a blue line. Ross 508 b skims the inner edge of the habitable zone (solid line), possibly crossing into the habitable zone for part of the orbit (dashed line).

Super-earth skimming habitable zone of red dwarf

National Institutes of Natural Sciences (Japan)

Categories Life & Non-humans, Space

A spinning neutron star periodically swings its radio (green) and gamma-ray (magenta) beams past Earth in this artist’s concept of a black widow pulsar. The neutron star/pulsar heats the facing side of its stellar partner (right) to temperatures twice as hot as the sun’s surface and slowly evaporates it. (Image credit: NASA’s Goddard Space Flight Center)

Heaviest neutron star to date is a ‘black widow’ eating its mate

Categories Physics & Mathematics, Space

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