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Sun activity archive for January 2025
Sun activity archive for January 2025. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
January 1, 2025
Mars starts a new year: avalanches, icy explosions and dunes
A new and explosive year began on Mars on November 14, 2024. NASA and its partners are tracking the season's strange and unique features.
December 31, 2024
Peering down at star-shaped cities from space
Satellites in space give us a clear view of these star-shaped cities in Europe. Read more about these cities, which are hundreds of years old, here.
December 31, 2024
Best stargazing of 2025: Top events not to miss
Get ready for the best stargazing of 2025! Mark your calendar for these observing events. And may we have clear, dark skies for all to enjoy.
December 29, 2024
Black Moon coming on December 30-31
We'll have a Black Moon - the second new moon in a calendar month - overnight from December 30 to 31, 2024. Here's what you'll see that night.
December 29, 2024
Are there liquid water brines on Mars? New study casts doubt
Scientists have hypothesized how liquid water brines on Mars could occur. A new study, however, suggested it's more unlikely than previously thought.
December 29, 2024
Parker Solar Probe survived its close brush with the sun!
The Parker Solar Probe reported back after "touching the sun" on December 24. It’s in good health and operating normally.
December 27, 2024
Io’s raging volcanoes are self-powered
Does Jupiter's moon Io have a global subsurface magma ocean? A new study said no, and that Io's raging volcanoes are self-powered with their own magma pools.
December 26, 2024
The Boxing Day tsunami 20-year anniversary
The 20th anniversary of the Indian Ocean Boxing Day tsunami is December 26, 2024. The event was one of the deadliest natural disasters in recorded history.
December 26, 2024
Exoplanet TRAPPIST-1 b might have a hazy atmosphere
Does exoplanet TRAPPIST-1 b have an atmosphere? A new study said it either has a hazy atmosphere or is geologically active, with volcanoes or plate tectonics.
December 24, 2024
