Deborah Byrd

Eclipses in 2019

A heliocentric – or sun-centered – view of eclipses in 2019 from astronomer Guy Ottewell.

See it! Last night’s lunar eclipse

It was the last total eclipse of the moon until May, 2021. The EarthSky community captured it. A selection of images here. See more at EarthSky Community Photos!

How to watch a total eclipse of the moon

Are you planning on watching the January 20-21 total eclipse of the moon? Here are some tips.

Why does moon in total eclipse look red?

If Earth didn’t have an atmosphere, the moon would be dark – perhaps even invisible – when entirely eclipsed within Earth’s shadow.

Rocky planet surface in forground, shining ribbon of planet-forming disk in background.

Double star flips planet-forming disk into pole position

Our sun’s planets orbit in a plane extending from the sun’s equator. Astronomers have found a double-star system whose planet-forming disk has flipped up – perpendicular to what we’d expect – over the poles. What would nature be like on one of these worlds?

Today in science: Finding magnetic south

On January 16, 1909, a team of Antarctic explorers thought they’d found the magnetic south pole. Then, a few years later, they began to have doubts.

Venus and Jupiter before sunup

The 2 brightest planets are easy to spot in the east before dawn now. Plus they’re getting closer! The Venus-Jupiter conjunction will come on the morning of January 22.

Circumzenithal arc over Michigan

Although people sometimes call them “upside-down rainbows,” they’re made not by rain, but by by ice crystals in the upper atmosphere.

Birds and birds

Chilika Lake – on the east coast of India – is the second-largest coastal lagoon in the world. It’s a large wintering ground for migratory birds.

Primitive life at Barnard’s Star?

Barnard b is one of the nearest planets to our sun at only 6 light-years away. But its host star is dim. Can life find a way on such a cold planet?