Posts by 

Deborah Byrd

November 23 moon and ISS

The International Space Station orbits the Earth every 90 minutes To the eye alone, it looks like a bright, moving star. Various online tools can help you capture its fleeting pass in front of the moon or sun.

NSF says Arecibo telescope will be dismantled

Heartbreaking news. After 57 years as a world-class resource for astronomy, the iconic Arecibo telescope is to be decommissioned, or withdrawn from service, the NSF announced today. The dish-type radio telescope - built into a natural depression in the landscape in Puerto Rico - appears to be headed for a "controlled disassembly."

A statement on Arecibo Observatory’s engineering options

Worrisome news regarding broken cables and engineering options at Arecibo Observatory, the iconic big radio dish in Puerto Rico.

Bridenstine to step down as NASA administrator

Jim Bridenstine is leaving the post of NASA chief administrator.

Boom! Bam! Boom! How to make a triple crater on Mars

Like many worlds in our solar system, Mars has prominent impact craters. A particularly unusual example is shown in this new image from ESA’s Mars Express: an ancient triplet composed of 3 overlapping craters.

The sun is becoming active again

EarthSky community members have captured the giant sunspot region - AR 2781 - currently making its way across the sun's visible surface.

Astronomers release a black hole family portrait

"Black hole family portrait" is a fancy way of saying "new catalog." But it's a very important and exciting catalog, released October 28, 2020, by gravitational wave astronomers, containing 39 new signals from black hole or neutron star collisions.

How to watch Taurid meteors in 2020

Although a modest shower, perhaps offering 5 meteors per hour, the Taurid shower lasts over a month and is known for producing dramatic fireballs, or exceptionally bright meteors.

Owl in front of the moon, with Mars above

An owl, a nearly full moon and a shining planet Mars. What more could you ask for Halloween 2020?

The magnetic fields of a jellyfish galaxy

New work reveals the intricate relationship between so-called jellyfish galaxies, and the magnetic environment through which they move.

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