Stars News
June 29, 2023

Top Headlines

Life After Death: Astronomers Find a Planet That Shouldn't Exist

明星会膨胀到p的1.5倍lanet's orbital distance -- engulfing the planet in the process -- before shrinking to its current size at only one-tenth of that ...

ALMA Digs Deeper Into the Mystery of Planet Formation

An international research team has observed disks around 19 protostars with a very high resolution to search for the earliest signs of planet formation. This survey was motivated by the recent findings that planet formation may be well-underway in the more-evolved proto-planetary disks, but until ...

A Surprise Chemical Find by ALMA May Help Detect and Confirm Protoplanets

Scientists studying the protoplanetary disk around a young star have discovered the most compelling chemical evidence to date of the formation of protoplanets. The discovery will provide astronomers with an alternate method for detecting and characterizing protoplanets when direct observations or ...

First Detection of Crucial Carbon Molecule

Scientists detect a new carbon compound in space for the first time. Known as methyl cation (pronounced cat-eye-on) (CH3+), the molecule is important because it aids the formation of more complex carbon-based molecules. Methyl cation was detected in a young star system, with a protoplanetary disk, ...

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Astronomers Discover Last Three Planets Kepler Telescope Observed Before Going Dark

With the help of citizen scientists, astronomers discovered what may be the last three planets that the Kepler Space Telescope saw before it was ...

The Search for Habitable Planets Expands

Astronomers are suggesting a new way to expand the search for habitable planets that takes into account a zone not previously considered: the space between the star and what's called soot-line ...

Astronomers Discover a Key Planetary System to Understand the Formation Mechanism of the Mysterious 'Super-Earths'

A study presents the detection of a system of two planets slightly larger than Earth orbiting a cold star in a synchronized dance. Named TOI-2096, the system is located 150 light-years from Earth. ...

NASA's Hubble Hunts for Intermediate-Sized Black Hole Close to Home

Astronomers have come up with what they say is some of their best evidence yet for the presence of a rare class of 'intermediate-sized' black hole that may be lurking in the heart of the ...

Element Creation in the Lab Deepens Understanding of Surface Explosions on Neutron Stars

Scientists working in the lab have produced a signature nuclear reaction that occurs on the surface of a neutron star gobbling mass from a companion star. Their achievement improves understanding of ...

Radio Signal Reveals Supernova Origin

Astronomers reveal the origin of a thermonuclear supernova explosion. Strong emission lines of helium and the first detection of such a supernova in radio waves show that the exploding white dwarf ...

Celestial Monsters at the Origin of Globular Clusters

Globular clusters are the most massive and oldest star clusters in the Universe. They can contain up to 1 million of them. The chemical composition of these stars, born at the same time, shows ...

Hidden Views of Vast Stellar Nurseries

Astronomers have created a vast infrared atlas of five nearby stellar nurseries by piecing together more than one million images. These large mosaics reveal young stars in the making, embedded in ...

Astronomers Find No Young Binary Stars Near Milky Way's Black Hole

Scientists analyzed over a decade's worth of data about 16 young supermassive stars orbiting the supermassive black hole at the center of the Milky Way galaxy. Supermassive stars typically are ...

Galactic Bubbles Are More Complex Than Imagined

Astronomers have revealed new evidence about the properties of the giant bubbles of high-energy gas that extend far above and below the Milky Way galaxy's ...

Neutron Star's X-Rays Reveal 'Photon Metamorphosis'

A 'beautiful effect' predicted by quantum electrodynamics (QED) can explain the puzzling first observations of polarized X-rays emitted by a magnetar -- a neutron star featuring a powerful ...


Hubble Follows Shadow Play Around Planet-Forming Disk

The young star TW Hydrae is playing 'shadow puppets' with scientists observing it with NASA's Hubble Space Telescope. In 2017, astronomers reported discovering a shadow sweeping across ...

Astronomers Spot a Star Swallowing a Planet

Scientists have observed a star swallowing a planet for the first time. Earth will meet a similar fate in 5 billion ...

Webb Finds Water Vapor, but from a Rocky Planet or Its Star?

Astronomers used NASA's James Webb Space Telescope to study a rocky exoplanet known as GJ 486 b. It is too close to its star to be within the habitable zone, with a surface temperature of about ...

Astronomers Detect 'Nearby' Black Hole Devouring a Star

Astronomers have discovered a new 'tidal disruption event,' in which the center of a galaxy lights up as its supermassive black hole rips apart a passing star. The outburst is the closest ...

Superflare With Massive, High-Velocity Prominence Eruption

A team of Japanese astronomers used simultaneous ground-based and space-based observations to capture a more complete picture of a superflare on a star. The observed flare started with a very ...

Most Massive Touching Stars Ever Found Will Eventually Collide as Black Holes

A new study looked at a known binary star (two stars orbiting around a mutual center of gravity), analyzing starlight obtained from a range of ground- and space-based telescopes. The researchers ...

Medium-Sized Black Holes Eat Stars Like Messy Toddlers

In new 3D computer simulations, astrophysicists modeled black holes of varying masses and then hurled stars (about the size of our sun) past them to see what might happen. If they exist, ...

Metal-Poor Stars Are More Life-Friendly

A star's chemical composition strongly influences the ultraviolet radiation it emits into space and thus the conditions for the emergence of life in its ...

Playing Hide and Seek With Planets

An international team of astronomers announced the first exoplanet discovered through a combined approach of direct imaging and precision measurements of a star's motion on the sky. This new ...

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