The space of night is infinite,
The blackness and emptiness
Crossed only by thin bright fences
Of logic

— Kenneth Rexroth
"Theory of Numbers"

Astronomy

Climate Change Is Raising the Temperature on Global Conflict

Scientific American.com - Thu, 10/24/2024 - 7:00am

In a new book, a long-time foreign correspondent examines the underappreciated links between climate change and violent conflict

Categories: Astronomy

Anyone Can Learn Echolocation in Just 10 Weeks—And It Remodels Your Brain

Scientific American.com - Thu, 10/24/2024 - 5:45am

Human echolocation repurposes parts of the brain’s visual cortex for sound, even in sighted people

Categories: Astronomy

Watch SpaceX launch next-gen US spy satellites today on 100th Falcon 9 flight of the year (video)

Space.com - Thu, 10/24/2024 - 5:00am
SpaceX plans to launch a batch of spy satellites for the U.S. National Reconnaissance Office today (Oct. 24) on the 100th Falcon 9 flight of the year.
Categories: Astronomy

The Daring Russian Geneticist Whose Experiments on Silver Foxes Explained Domestication Has Died

Scientific American.com - Thu, 10/24/2024 - 5:00am

Lyudmila Trut devoted her life to studying the process of domestication by selectively breeding friendly foxes

Categories: Astronomy

Most of Comet Tsuchinshan ATLAS

APOD - Wed, 10/23/2024 - 11:00pm

On October 14 it was hard to capture a full view of


Categories: Astronomy, NASA

The Clipper and the Comet

APOD - Wed, 10/23/2024 - 11:00pm

The Clipper and the Comet


Categories: Astronomy, NASA

Status Report: Gravitational Waves

Sky & Telescope Magazine - Mon, 08/12/2024 - 7:00am

Astronomers at the International Astronomical Union report that we have now detected more than 200 gravitational-wave events, most the merger of two black holes.

The post Status Report: Gravitational Waves appeared first on Sky & Telescope.

Categories: Astronomy

Tonight's Perseid Meteor Shower May Be Dipped in Aurora Sauce

Sky & Telescope Magazine - Sun, 08/11/2024 - 6:15pm

The Perseids peak on Sunday night, August 11-12 and just might be joined by a colorful display of northern lights. 

The post Tonight's Perseid Meteor Shower May Be Dipped in Aurora Sauce appeared first on Sky & Telescope.

Categories: Astronomy

Woo-hoo — The Perseid Meteor Shower Is Coming!

Sky & Telescope Magazine - Fri, 08/09/2024 - 5:39am

It's time again for the annual August meteor-shower fest, the Perseids. This year's display should be a beauty with only minor moonlight and a special surprise at dawn.

The post Woo-hoo — The Perseid Meteor Shower Is Coming! appeared first on Sky & Telescope.

Categories: Astronomy

This Week's Sky at a Glance, August 9 – 18

Sky & Telescope Magazine - Fri, 08/09/2024 - 4:02am

The Perseid meteor shower peaks late Sunday night August 11th and maybe Monday night too. Jupiter and Mars have a close conjunction on the morning of the 14th, looking radically different in the same telescopic view.

The post This Week's Sky at a Glance, August 9 – 18 appeared first on Sky & Telescope.

Categories: Astronomy

Prepare for the Perseids and a Pretty Planetary Pairing

Sky & Telescope Magazine - Thu, 08/08/2024 - 9:20am

The year’s long-awaited Perseid meteor shower will be accompanied by a graceful planetary conjunction. It’s well worth staying up all night to watch.

The post Prepare for the Perseids and a Pretty Planetary Pairing appeared first on Sky & Telescope.

Categories: Astronomy

The Hubble Ultra-Deep Field, 15 Years Later

Sky & Telescope Magazine - Wed, 08/07/2024 - 3:05pm

Fifteen years ago, the Hubble Space Telescope gazed intently at the infrared glow of galaxies in a tiny fraction of the sky. New research shows how this patch of space has changed since then.

The post The Hubble Ultra-Deep Field, 15 Years Later appeared first on Sky & Telescope.

Categories: Astronomy

Neutron Stars Might Be Squishy Inside

Sky & Telescope Magazine - Tue, 08/06/2024 - 3:36pm

New data on the brightest pulsar observed with a telescope on the International Space Station suggests neutron star interiors are "squishy."

The post Neutron Stars Might Be Squishy Inside appeared first on Sky & Telescope.

Categories: Astronomy

Enroll in the School of Stars

Sky & Telescope Magazine - Mon, 08/05/2024 - 7:00am

Amateur astronomers are all life-long learners — and this "back to school" time of year provides just the right motivation.

The post Enroll in the School of Stars appeared first on Sky & Telescope.

Categories: Astronomy

This Week's Sky at a Glance, August 2 – 11

Sky & Telescope Magazine - Fri, 08/02/2024 - 3:42am

The Perseid meteors ramp up this week to their peak. Saturn is nicely up in the east by late evening. Jupiter and Mars near their conjunction in the morning sky. And there's a story behind Poniatowski's Bull.

The post This Week's Sky at a Glance, August 2 – 11 appeared first on Sky & Telescope.

Categories: Astronomy

Does This Mars Rock Show a "Potential Biosignature"? Or Just "Wet Chemistry"?

Sky & Telescope Magazine - Fri, 08/02/2024 - 12:22am

"Leopard spots" on a Mars rock could come from life — or they could simply be a sign of a type of chemical reaction that requires water.

The post Does This Mars Rock Show a "Potential Biosignature"? Or Just "Wet Chemistry"? appeared first on Sky & Telescope.

Categories: Astronomy

August Podcast: Nova Watch in the Northern Crown

Sky & Telescope Magazine - Thu, 08/01/2024 - 1:00am

Let’s go on a night-sky tour of the stars and planets that you’ll see overhead during August. Find a good seat for some great “shooting stars,” watch Saturn climb in the eastern sky in early evening, check out the summer's brightest stars, and start looking for a once-in-your-lifetime star blast. 

The post August Podcast: Nova Watch in the Northern Crown appeared first on Sky & Telescope.

Categories: Astronomy

Reading the Tea Leaves: The Future of the Hubble and Chandra Space Telescopes

Sky & Telescope Magazine - Wed, 07/31/2024 - 3:56pm

Future funding for NASA's remaining Great Observatories — Chandra X-ray Observatory and Hubble Space Telescope — is still up in the air.

The post Reading the Tea Leaves: The Future of the Hubble and Chandra Space Telescopes appeared first on Sky & Telescope.

Categories: Astronomy

David Crawford, 1931–2024

Sky & Telescope Magazine - Mon, 07/29/2024 - 4:42pm

A professional astronomer turned dark-sky champion, David L. Crawford became synonymous with the fight against light pollution around the world.

The post David Crawford, 1931–2024 appeared first on Sky & Telescope.

Categories: Astronomy

Neutron Star Eaten by Small Black Hole (Probably)

Sky & Telescope Magazine - Mon, 07/29/2024 - 2:07pm

Gravitational-wave astronomers have identified ripples in spacetime from the coalescence of a neutron star with what’s likely one of the smallest black holes ever found.

The post Neutron Star Eaten by Small Black Hole (Probably) appeared first on Sky & Telescope.

Categories: Astronomy