For the southernmost US and similar latitudes, the earliest sunsets of the year are happening now. Your earliest sunset depends on your latitude, but always comes before the winter solstice.
Although a modest shower, perhaps offering 5 meteors per hour, the Taurid shower lasts over a month and is known for producing dramatic fireballs, or exceptionally bright meteors.
The full moon of October 31, 2020 is the second full moon of a calendar month and therefore carries the name Blue Moon. It's also the smallest full moon of 2020. And it's near red Mars! Watch for it.
Look east after sunset - or west before sunrise - for Earth's shadow. It's a deep blue-grey band, curved as Earth is curved, moving opposite the sun. The Belt of Venus is the subtle pink band above the shadow.
October 16 brings us the closest new moon of 2020. Some will call it a supermoon. You won't see this extra-close new moon because it'll travel across the daytime sky with the sun. But you might see its gravitational effect on the tides along ocean shorelines in the days following new moon.