Here's everything you need to know about the annual Perseid Meteor Shower and how to watch it.
Your guide to total, partial, and annular eclipses: what causes them, what you'll see, and when the next one will happen.
If your latitude is within 42 degrees of the equator, there's a chance you may be able to spot LightSail 2's reflective solar sail.
What's up for the week of 27 September
Now is a great time to look at the Moon through a telescope or binoculars. In its waxing crescent phase, the Moon is illuminated in such a way that stark shadows are cast in its craters, making them particularly beautiful to observe. Jupiter, Saturn, and Mars still greet observers in the evening sky, with Venus shining bright in the pre-dawn.
22 September: September Equinox
8 and 9 October: Draconid Meteor Shower
21 and 22 October: Orionid Meteor Shower
17 and 18 November: Leonid Meteor Shower
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