Orbital reentry is usually moving parallel to the ground, at a speed of about 7 km/sec or 17,500 miles per hour. The reentry can occur at any time of the day. These reentries can often look like shooting stars (meteors) with a bright central body followed by a long, dazzling tail and often break into numerous fragments. #science #space #astronomy #astrology

Firefly Aerospace's Blue Ghost is a lunar lander designed to deliver payloads to the Moon's surface. The first mission, Blue Ghost Mission 1 (TO 19D), launched on January 15, 2025 and is expected to land on March 2, 2025. The mission will carry 10 payloads, including 10 NASA-sponsored instruments, to Mare Crisium on the Moon's near side. #space #science #astronomy #astrology

Comet Shoemaker–Levy 9 was a comet that broke apart in July 1992 and collided with Jupiter in July 1994, providing the first direct observation of an extraterrestrial collision of Solar System objects. #space #astronomy #science #astrology

OJ 287 is a BL Lac object 4 billion light-years from Earth that has produced quasi-periodic optical outbursts going back approximately 120 years, as first apparent on photographic plates from 1891. #astronomy #space #science #astrology

A millisecond pulsar is a neutron star that spins very quickly, emitting radiation pulses at regular intervals. The rotational period of a millisecond pulsar is less than 10 milliseconds, which is equivalent to 6,000 to 60,000 revolutions per minute. How are they created? Millisecond pulsars are created when a neutron star accretes matter from a nearby companion star. This process is called "exchange" and can occur when ancient neutron stars interact with normal stellar binaries. The neutron star replaces the lowest mass star in the binary. #astronomy #science #space #astrology