What’s Up: The autumnal equinox occurs on September 22 at 3:21pm EDT (-4 UTC), signaling the start of coolers days and longer nights.
On September 13, José Luis Pereira was able to catch the bright flash of some object impacting the cloudy atmosphere of Jupiter.
The National Astronomical Observatory of Japan has released Uchuu, “outer space”, the largest and most realistic universe simulation.
Columbia Climate School graduate student Jasper Baur published a blog entry detailing his fieldwork in Alaska’s Okmok Volcano.
Researchers documented a history of explosive eruptions on the Arabia Terra region of Mars that blanketed the area in layers of ash and minerals.
Scientists reanalyze data from the Magellan spacecraft to look at the radar emissivity of Venus’s surface and find well-weathered volcanoes.
A new model using data from NASA’s MESSENGER mission finds that faults on Mercury cluster in regions were the crust is thickest.
This week in rocket history, we look back at Gemini 11, a mission that set two separate records that stand to this day.
On September 14, Arianespace and Starsem launched a Soyuz carrying 34 satellites for the OneWeb 10 mission, bringing the total to 322.
On September 14, the Starlink Group 2-1 mission launched atop Falcon 9 booster 1049, adding another 51 satellites to the constellation.