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EarthSky Voices

Flashes on the sun might help predict solar flares

Using data from NASA’s Solar Dynamics Observatory, scientists have found that flashes on the sun could help them predict the next solar flare.

EarthSky Voices

January 22, 2023

On Saturday … Closest new moon in 1,337 years

The new moon of January 21, 2023 will be the closest new moon to Earth in a period of 1,337 years. Read more about the closest new moon here.

EarthSky Voices

January 19, 2023

NASA says 2022 5th-warmest year on record

NASA scientists say 2022 5th-warmest year since 1880. And the last 9 consecutive years have been the warmest 9 on record.

EarthSky Voices

January 16, 2023

When a black hole swallows a star

Hubblesite reports on what happens when a black hole swallows a star. The hungry black hole twists the star into a donut shape.

EarthSky Voices

January 15, 2023

What is a variable star?

What is a variable star? It's a star that brightens and dim in a cycle that might last hours, or weeks, or months, or longer. Astronomers know millions!

Andy Briggs

EarthSky Voices

January 15, 2023

Webb discovers its 1st exoplanet

Webb discovers its 1st exoplanet! And - speaking this week at the American Astronomical Society meeting in Seattle - astronomers are excited.

EarthSky Voices

January 12, 2023

Antarctic sea ice in rapid decline this season

Recent images acquired via satellite on clear days in Antarctica. Antarctic sea ice decline in the 2022-2023 season has been the lowest in 45 years.

EarthSky Voices

January 12, 2023

Ultracool dwarf binary stars break records

Astronomers have discovered an ultracool dwarf binary system - 2 very low-mass stars orbiting closely - completing an orbit in less than an earthly day.

EarthSky Voices

January 11, 2023

Black holes are time machines, with a catch

Black holes are time machines for traveling into the future and the past. But it's not quite so simple. Read more about the rules of time travel in black holes.

EarthSky Voices

January 5, 2023