21–40 of 362 results
Supernova (artist's concept)

Stellar Science

The Supernova That Destroyed Its Star

Astronomers have discovered a real and unprecedented example of a type of supernova that was until now largely theoretical — a stellar explosion that leaves nothing behind.

U Cam mass loss

Stellar Science

Century of Amateur Observations Shed Light on Star's Evolution

The amateurs of the AAVSO monitored the star T Ursae Minoris for a century. Now, astronomers think they can explain the star's recent change in behavior.

Pisces–Eridanus stellar stream

Stellar Science

A Nearby Stellar Stream Gets Carded

The stellar stream Pisces–Eridanus may try to pass itself off as a billion years old, but scientists are calling its bluff.

Artist's concept of Beta Pictoris system

Solar System

Beta Pic's New Planet, Jupiter’s Fuzzy Core & An Ancient Star

Astronomers announce another planet around Beta Pictoris, simulations explain Jupiter's large and fuzzy core, and observations reveal an ancient star.

Lensing white dwarf

Stellar Science

An “Impossible” White Dwarf Identified in Kepler Data

Meet the white dwarf that defies all expectations.

Owens Valley Radio Observatory

Stellar Science

Astronomers Identify Host Galaxy of a Third Radio Flash

Astronomers have narrowed down the location of a third "fast radio burst" to a galaxy very like the Milky Way.

ASKAP in Western Australia

Stellar Science

Astronomers Pinpoint New Fast Radio Burst

A next-gen Australian radio array has enabled astronomers to home in on the source of a mysterious fast radio burst — and the source is not what they expected.

Superluminous supernova (artist's impression)

Stellar Science

A Link Between Fast Radio Bursts, Magnetars, and Supernovae?

What causes the bizarre, extragalactic fast radio bursts we’ve detected over the last decade? An unusually bright supernova may hold the answer.

VERITAS

Stellar Science

How Astronomers Used Asteroids to Measure Stars

Astronomers have used a unique method and an extraordinary telescope array to reveal the diameters of distant stars.

The Hyades open star cluster

Milky Way

The Beginning of the End for the Hyades Star Cluster

New measurements from the European Space Agency’s Gaia satellite show that the young stars of the Hyades cluster are beginning to drift apart.

Young star's magnetic field

Stellar Science

Scientists Find Stellar Flare 10 Billion Times More Powerful Than Those on the Sun

Scientists have caught a powerful flare of submillimeter-wavelength radiation from a young star in the Orion Nebula.

Andromeda in ZTF field of view

Stellar Science

New Astro Camera Spots Thousands of Celestial Flare-ups

A vision from 70 years ago, the Zwicky Transient Facility has produced a wave of discoveries — but it’s only a hint of what’s to come.

Location of AT2018cow

Stellar Science

Celestial Event Dubbed "The Cow" Puzzles Astronomers

Astronomers can't agree on what kind of strange stellar death created a brilliant source dubbed "the Cow."

Orion's Dragon

Stellar Science

The Dragon in Orion's Nebula

NASA's planebound SOFIA observatory has captured a far-infrared view of the Orion Nebula that reveals the actions of the region's stars — and the striking illusion of a dragon at the nebula's core.

Image of a pinwheel of dust around a massive star

Stellar Science

Glowing Serpent Found in the Sky

Astronomers have discovered a star generating a pinwheel of dust 8,000 lightyears away, which may shed some light on the last stages of massive star evolution.

A Colorful problem

Deep Sky

Ducks in Disguise or How Stars Hide Their True Colors

Do star clusters form all at once or over several generations? A team of astronomers finds an answer among the spinning stars of an amateur favorite, the Wild Duck Cluster. 

Image showing location of 2MASS J18082002–5104378

Stellar Science

Puny Star Might Be Specimen from Early Universe

A low-mass sun with few elements heavier than helium provides hope that the Galaxy might contain survivors from the very first generation of stars. 

Stellar Science

Speeding White Dwarfs May Point to Past Explosions

A recent study has discovered three of the fastest stars — white dwarfs — known in the Milky Way. But these stars may be more than just speeders — they might also be evidence of how Type Ia supernovae occur.

Stellar Science

Two Explosions with Similar Quirks

High-energy radiation released during the merger of two neutron stars last year has left astronomers puzzled. Could a burst of gamma rays from 2015 help us to piece together a coherent picture of both explosions?

Stellar Science

A New Look at the Solar Corona

The hot, tenuous solar corona is visible during a total solar eclipse, and astronomers have long studied the structure and dynamics of the ghostly coronal streamers. Now, a special observing campaign has allowed us to see the corona in unprecedented detail.

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