A March 22 study suggests that 'Oumuamua, which passed us in 2017, was a comet from another solar system. Harvard astronomer Avi Loeb strongly disagrees.
Mercury is visible in the evening sky. Look in the sunset direction as the sky is darkening. The planet reaches its greatest elongation on April 11, 2023.
If you see a foreboding, green sky, it's best to take cover. A tornado might not be approaching, but green skies can be a sign of hail and other bad weather.
Solar Cycle 25 is fairly active now, and that means more solar activity. So, what's the difference between a solar flare and a coronal mass ejection (CME)?
The zodiacal light is an eerie light extending up from the horizon. And the months around the March equinox is a good time to see it. How to see them, here.
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