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Updated: 1 hour 29 min ago

Binary stars may be an explanation for powerful gamma-ray bursts

Tue, 01/14/2020 - 05:00
A new study shows that being in a binary star system can keep a massive star spinning fast enough to produce such powerful explosions.
Categories: Astronomy

Why does a week have seven days?

Mon, 01/13/2020 - 05:00
The Babylonians' calendar was passed down from civilization to civilization.
Categories: Astronomy

Scientists find meteorite pieces older than the solar system

Mon, 01/13/2020 - 05:00
Some of the ancient grains may have been created by a boom in stars forming in the Milky Way about seven billion years ago.
Categories: Astronomy

Binary star V Sagittae expected to light up the night sky in 2083

Fri, 01/10/2020 - 05:00
The pair of stars known as V Sagittae is on a spiraling collision course whose explosive end we'll see by the end of the century, astronomers think.
Categories: Astronomy

The Sky This Week from January 10 to 19

Fri, 01/10/2020 - 05:00
The Full Moon dominates the night sky early this week, but as it moves out of the way, stargazers can view Orion with an uncharacteristically faint Betelgeuse.
Categories: Astronomy

With more Starlink satellites, astronomers keep voicing concerns

Thu, 01/09/2020 - 05:00
The third and most recent launch includes one experimentally darkened satellite. Astronomers have yet to see whether it's an effective solution.
Categories: Astronomy

Probing the cosmos for flaws in Einstein's general relativity

Thu, 01/09/2020 - 05:00
Einstein's equations have held up remarkably well for over a century. But they leave tantalizing gaps in our knowledge.
Categories: Astronomy

The Hubble team: how space telescopes will work together

Thu, 01/09/2020 - 05:00
As new space telescopes are developed and launched, they’re not meant to replace the iconic telescope, but aid its missions.
Categories: Astronomy

Astronomers see how the universe first lit up from most distant galaxy cluster

Thu, 01/09/2020 - 05:00
Scientists gain a new glimpse into a billions-of-years-old event in the universe that allowed light to shine freely.
Categories: Astronomy

Gravitational waves reveal a second neutron star collision

Wed, 01/08/2020 - 05:00
The gravitational waves were detected back in April 2019, but researchers just confirmed they likely came from the merger of the largest pair of neutron stars known.
Categories: Astronomy

K dwarf stars may offer the best odds for hosting alien life

Wed, 01/08/2020 - 05:00
The red dwarfs are relatively safe and long-lived, making them potentially ideal stellar neighborhoods for life.
Categories: Astronomy

A ring of gas discovered circling a galaxy

Wed, 01/08/2020 - 05:00
The ring is more than three times as far across as the Milky Way.
Categories: Astronomy

NASA telescope discovers its first planet orbiting two stars

Tue, 01/07/2020 - 05:00
The Tatooine-like planet orbits a pair of stars — one sunlike and the other a red dwarf — once every 95 days or so.
Categories: Astronomy

A habitable Earth-sized planet discovered by nearby star

Tue, 01/07/2020 - 05:00
A few months ago a group of NASA exoplanet astronomers, who are in the business of discovering planets around other stars, called me into a secret meeting to tell me about a planet that had captured their interest. Because my expertise lies in modeling the climate of exoplanets, they asked me to figure out whether this new planet was habitable – a place where liquid water might exist. These NASA colleagues, Josh Schlieder and his students Emily Gilbert, Tom Barclay and Elisa Quintana, had
Categories: Astronomy

The Steady State: When astronomers tried to overthrow the Big Bang

Mon, 01/06/2020 - 05:00
Some astronomers didn’t like the religious implications of a universe with a beginning. Their alternative was the so-called “steady state model.”
Categories: Astronomy

The length of a day on Venus keeps changing

Mon, 01/06/2020 - 05:00
Researchers have spent decades trying to pin down exactly how long a day on Venus lasts. Finding the answer cuts to the core of fundamental mysteries about the planet.
Categories: Astronomy

Crater found from asteroid that covered 10% of Earth's surface in debris

Fri, 01/03/2020 - 05:00
The crater sits beneath a plain of hardened lava that formed after the asteroid impact, which occurred nearly 800,000 years ago.
Categories: Astronomy

Telescope maker Meade files for bankruptcy

Fri, 01/03/2020 - 05:00
Meade and its Chinese parent company, Ningbo Sunny, recently lost an antitrust lawsuit with a competitor.
Categories: Astronomy

The Sky This Week from January 3 to 12

Fri, 01/03/2020 - 05:00
Although the prolific Quadrantid meteor shower peaks under a Moon-free sky the morning of January 4, the Full Moon dominates the night sky by week’s end.
Categories: Astronomy

New light sail would use laser beam to ride through space

Thu, 01/02/2020 - 05:00
The new design would be able to stabilize itself.
Categories: Astronomy

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