Posts by 

Deborah Byrd

New video: The 1843 Great Eruption of Eta Carinae

In 1843, the star Eta Carinae briefly became the one of the brightest stars in the sky. Then it faded. Astronomers call it the star's Great Eruption.

Monoceros: Capture a glimpse of the Unicorn

Inside a triangle of 3 bright stars - and hidden within the glitter of the Milky Way - you'll find the constellation of Monoceros the Unicorn.

Visible planets, stars, moon, more, late January and February

Find out how to see the visible planets, such as Mercury, Venus, Mars, Jupiter and Saturn, in late January and early February 2022.

Sweden went 1st in banning aerosol sprays on January 23, 1978

Sweden 1st to ban aerosol sprays on this date in 1978. They were propelled by chlorofluorocarbons (CFCs), which harmed Earth's ozone layer.

Black holes devour stars. Do they also help stars form?

New data from the heart of dwarf galaxy Henize 2-10 suggest some black holes help create stars. They also bring light on how the first supermassive black holes formed.

New comet C/2021 O3 might brighten in May 2022

Newly discovered comet C/2021 O3 (PanSTARRS) will sweep near the sun and Earth in April and May of 2022. Charts for skywatchers here.

Rolling stones on Mars, seen from orbit

Rolling stones on Mars. An image from the ESA/Roscosmos ExoMars Trace Gas Orbiter shows a cliff-face on Mars. Boulders have rolled down the cliff.

Orion the Hunter is easy to spot in January

Orion the Hunter is one of the easiest constellations to identify thanks to its Belt, the 3 medium-bright stars in a short, straight row at his waist.

A gravitational wave background from giant black holes?

In its second data release in early January 2022, scientists with IPTA announced early glimpses of a gravitational wave background.

January’s full moon: Wolf Moon and 1st full moon of 2022

January's full moon is on January 17, 2022, and is nicknamed the Wolf Moon. Enjoy the full-looking moon for a night or two on either side of that night.