Astronomers using the European Southern Observatory’s Very Large Telescope have tracked the binary black hole system Swift J1727.8−1613 through a 2023 eruption, discovering that…
Astronomers warn that low Earth orbit satellite constellations could exceed 100,000 spacecraft, creating unmanageable data loss for ground-based observatories. A European Southern Observatory study published in Astronomy & Astrophysics finds that proposed mega-constellations threaten night-sky visibility and asteroid tracking. As thousands of new spacecraft enter orbit, ground-based astronomical research faces a technological squeeze. A study … Read more
A spent upper stage from a SpaceX Falcon 9 rocket slammed into the lunar surface at roughly 8,700 kilometers per hour (5,400 miles per hour) on August 5, 2026. The unintentional collision occurred near the moon’s Einstein Crater and the terminator line, which is the border between daylight and darkness. SpaceX Falcon 9 Upper Stage … Read more
A spent SpaceX Falcon 9 rocket upper stage slammed into the lunar surface at roughly 8,700 kilometers per hour (5,400 miles per hour) on August 5, 2026. The collision occurred at about 06:35 UTC, or 2:35 a.m. ET, near the Moon’s Einstein and Bell craters. SpaceX Falcon 9 Upper Stage Strikes the Moon The piece … Read more