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Posts by
EarthSky Voices
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.
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.
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.
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!
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.
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.
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.
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.
January 5, 2023
Isaac Newton born today in 1643
Isaac Newton, born on January 4, 1643, discovered the laws of motion and other principles that laid the foundation of physics and astronomy.
January 4, 2023
Winter wonderland on Mars
NASA captured fascinating images of the winter wonderland on Mars. When Mars thaws in the spring, the ice takes on new shapes and results in erupting geysers.
January 3, 2023
