21–40 of 369 results
Host Galaxy of a Radio Flash

Stellar Science

New Mysterious Radio Flash Pinned Down; Hundreds More Being Discovered

Recent observations have pinpointed the location of a fifth fast radio burst, shedding light on the environs that create these powerful sources.

Stellar Science

Baby Stars Found in Ancient Part of Our Galaxy

Ground- and space-based observations have revealed a group of stars at the head of the giant stream of gas burrowing its way through the Milky Way.

V Sagittae Finder Chart

Stellar Science

Mark Your Calendar: Stellar Fireworks Predicted for 2083

According to Bradley Schaefer (Louisiana State University), the 11th-magnitude variable star, V Sagittae, will outshine Sirius and maybe even Venus — despite its distance of some 7,500 light-years.

Neutron Star Pair Collides (art)

Stellar Science

Gravitational Waves from Second Neutron-star Collision Observed

Scientists with the Laser Interferometer Gravitational-wave Observatory (LIGO) and Virgo collaborations have announced the detection of a second pair of neutron stars that went bump in the night.

Star orbiting black hole

Stellar Science

Heavyweight Black Hole Find Mystifies Astronomers

Observations of a star have found it orbiting an unexpectedly massive black hole. If the discovery pans out, it would change our understanding of how massive stars die.

Gamma-ray burst illustration

Stellar Science

Astronomers See Extreme Photons from Collapsing Massive Stars

Astronomers have detected a long-sought signal from gamma-ray bursts — the highest-energy photons ever seen from these events.

Boyajian's Star (art)

Stellar Science

Are There More Stars Like Boyajian’s Star?

Remember KIC 8462852, better known as Boyajian’s star (or you may have seen it referred to as the “alien megastructure” star)? We still don’t have a definitive explanation for this source’s odd behavior — in part because we thought that Boyajian’s star was one-of-a-kind.

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

Stellar Science

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

Astronomy in Space with David Dickinson

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

Professional Telescopes

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."

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