ESA confirmed that BepiColombo's Mercury Transfer Module separated from the spacecraft stack on 3 September 2026, the first step in a six-month arrival sequence toward orbit around Mercury.
Venus was photographed disappearing behind the Moon on June 17, 2026, from NASA Headquarters in Washington, the first of three such occultations that year.
A NASA Astronomy Picture of the Day from September 4, 2026 shows the spiral galaxy pair NGC 7253 and Arp 278, about 200 million light-years away in Pegasus, named by Hawaiian high school students.
NASA reported on September 3, 2026, that the Expedition 75 crew cleaned up after a September 1 spacewalk, serviced Earth-imaging gear and prepared for a cargo spacecraft swap.
NASA's Nancy Grace Roman Space Telescope lifted off Aug. 30, 2026, on a SpaceX Falcon Heavy from Kennedy Space Center, beginning a three-month, million-mile journey to its final orbit, the agency reported on Sept. 3, 2026.
ESA and JAXA's BepiColombo mission took its first step toward Mercury on 3 September 2026, when the Mercury Transfer Module was scheduled to separate from the stacked spacecraft after eight years in the inner Solar System.
The ESA/Hubble Picture of the Month features the nebula LHA 120-N44, whose central superbubble spans roughly 210 by 140 light-years. A Hubble survey catalogued nearly half a million stars there, including nearly 30 000 that have not yet begun fusing hydrogen.
A NASA image captured a partial lunar eclipse over southern Louisiana on Aug. 28, 2026. At greatest eclipse, 96.3% of the Moon's disk was in Earth's umbra, the report said.
NASA's September 2026 skywatching tips cover a bright evening Venus, the September equinox, International Observe the Moon Night and a Harvest Moon near Saturn and Neptune.
NASA's Astronomy Picture of the Day for September 1, 2026 presented a photograph of a lunar eclipse taken the previous week from Portugal, with an explanation noting such eclipses are widely visible.
In a report dated Aug. 31, 2026, NASA says the Nancy Grace Roman Space Telescope launched from Kennedy Space Center aboard a SpaceX Falcon Heavy on Aug. 30, 2026, to survey stars and galaxies.
A NASA page dated Aug. 31, 2026 said the Roman Space Telescope was on a three-month journey to Sun-Earth Lagrange Point 2, with commissioning underway and some deployments still to come.
