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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.
January 26, 2022
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.
January 26, 2022
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.
January 23, 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.
January 23, 2022
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.
January 21, 2022
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.
January 20, 2022
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.
January 20, 2022
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.
January 18, 2022
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 17, 2022
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.
January 17, 2022
