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What is the moon phase today? Lunar phases 2026
By Tariq Malik, Daisy Dobrijevic last updated
Reference See what moon phase it is tonight and find out when you can see the rest of the moon phases for 2026.

Could a toxic chemical in Mars dirt help us build a Red Planet base?
By Keith Cooper published
Perchlorate, a toxic substance found in Mars dirt, could help the bacterium Sporosarcina pasteurii strengthen bonds between particles of regolith.

Will a bright comet adorn our early spring sky? Why astronomers are getting excited about Comet C/2026 A1 (MAPS)
By Joe Rao published
Some astronomers have noted that its faint magnitude "does not bode well for the comet's survival past perihelion."

Sun unleashes colossal X4.2 solar flare, knocking out radio signals across Africa and Europe (video)
By Daisy Dobrijevic published
An impulsive X4.2 solar flare sparked strong radio blackouts across Africa and Europe as the giant sunspot continues to rage.

NASA satellite watches January's polar vortex | Space photo of the day for Feb. 4, 2026
By Kenna Hughes-Castleberry published
A late January 2026 winter storm left more than snow and ice in its wake.

Is Jupiter on a diet? New measurements say it's smaller than we thought
By Keith Cooper published
Jupiter may be a bit more petite than expected, and that could have a big impact on how scientists model the mysterious interior of the giant planet.

Bleached Martian rocks offer fresh evidence of a wetter and warmer Mars: 'But where did they come from?
By Sharmila Kuthunur published
"You need so much water that we think these could be evidence of an ancient warmer and wetter climate where there was rain falling for millions of years."

Sun unleashes extraordinary solar flare barrage as new volatile sunspot turns toward Earth
By Daisy Dobrijevic published
A rapidly growing sunspot has fired off at least 18 M-class and three X-class flares in just 24 hours, including an intense X8.3 eruption.
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