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Yesterday β€” 30 November 2021Astronomy & Observing News – Sky & Telescope

Meet Proxima Centauri: The Closest Star

Proxima Centauri is the dimmest and smallest of the Alpha Centauri system, but it has the honor of being the nearest star.

The post Meet Proxima Centauri: The Closest Star appeared first on Sky & Telescope.

Before yesterdayAstronomy & Observing News – Sky & Telescope

Astronomers Watch Black Hole Jet Launch

Astronomers have watched a jet launch from a stellar-mass black hole inside the Milky Way.

The post Astronomers Watch Black Hole Jet Launch appeared first on Sky & Telescope.

Did Astronomers Spot a Black Hole in Another Galaxy? Maybe Not

Astronomers might have spotted a stellar-mass black hole in another galaxy β€” but not everyone agrees with what they found.

The post Did Astronomers Spot a Black Hole in Another Galaxy? Maybe Not appeared first on Sky & Telescope.

This Week's Sky at a Glance, November 19 – 27

Orion now rises in the east around 8 p.m. Will Betelgeuse or Rigel be the first of his bright stars to come up? That depends on your latitude; Los Angeles and Atlanta are balance points. The Pleiades and Aldebaran watch this scene from high above.

The post This Week's Sky at a Glance, November 19 – 27 appeared first on Sky & Telescope.

Did a Comet Explode Over South America 12,000 Years Ago?

Huge chunks and twisted slabs of dark glass are strewn across a patch of the Chilean Atacama Desert. Do they have a cosmic origin?

The post Did a Comet Explode Over South America 12,000 Years Ago? appeared first on Sky & Telescope.

Mariner 9: The Martian Semicentennial

A half century ago, Mariner 9 β€” our first orbiter at another planet β€” showed us the real Mars.

The post Mariner 9: The Martian Semicentennial appeared first on Sky & Telescope.

This Week's Sky at a Glance, November 12 – 20

Venus, Jupiter and Saturn highlight the dusk. Mercury and Mars are a dawn challenge. And get ready for the barely-almost-total eclipse of the Moon.

The post This Week's Sky at a Glance, November 12 – 20 appeared first on Sky & Telescope.

A Near-Miss Total Lunar Eclipse

A near-total lunar eclipse will be widely visible across North America on the night of November 18–19. Dress warmly and go for it!

The post A Near-Miss Total Lunar Eclipse appeared first on Sky & Telescope.

Close Companions Help Stars Make More Carbon

Massive stars can produce twice as much carbon when they have a close binary companion, according to a new study. The result is a small but important step in understanding the cosmic origin of elements.

The post Close Companions Help Stars Make More Carbon appeared first on Sky & Telescope.

The Case for an Active Volcano on Venus

After decades of studying Venus, many questions remain about our planetary next-door neighbor. One question has particularly intrigued astronomers: which, if any, of Venus’s 1,600 volcanoes are still active?

The post The Case for an Active Volcano on Venus appeared first on Sky & Telescope.

Did We Find a Planet in Another Galaxy?

Astronomers using an innovative method have detected the signal of what could be an extragalactic exoplanet. But confirming its existence will be difficult.

The post Did We Find a Planet in Another Galaxy? appeared first on Sky & Telescope.

November: A Flying Horse and Star Fish

With darkness coming earlier now, take advantage of November's clear evenings to explore the nighttime sky with our audio guided tour.

The post November: A Flying Horse and Star Fish appeared first on Sky & Telescope.

This Week's Sky at a Glance, October 29 – November 6

The moonless evenings this week offer three bright planets and deep-sky riches as deep as you can go. Meanwhile, the waning crescent Moon meets Mercury and Spica low in bright dawn.

The post This Week's Sky at a Glance, October 29 – November 6 appeared first on Sky & Telescope.

Willmann-Bell Books Now Available

The AAS is honored to be continuing the legacy of Willmann-Bell, Inc. by selling and publishing their robust catalog of astronomy books as an imprint of AAS Sky Publishing, LLC.

The post Willmann-Bell Books Now Available appeared first on Sky & Telescope.

The True Nature of the Candidate ET Signal From Proxima Centauri

Human-made interference, not extraterrestrial technology, is responsible for the first candidate "signal of interest" detected by the project Breakthrough Listen.

The post The True Nature of the Candidate ET Signal From Proxima Centauri appeared first on Sky & Telescope.

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