Large asteroid 1994 PC1 to fly past Earth at 5.5 LD on January 18

Large asteroid 1994 PC1 to fly past Earth at 5.5 LD on January 18

A large near-Earth asteroid designated 1994 PC1 will fly past Earth at a distance of 5.5 LD / 0.01325 AU (1.98 million km / 1.23 million miles) on January 18, 2022. This is the second-closest approach of this object to Earth since 1933. 1994 PC1 is an Apollo-class…

Bright North Taurid fireball over the Mediterranean Sea

Bright North Taurid fireball over the Mediterranean Sea

This bright North Taurid fireball overflew the Mediterranean Sea at 22:52 UTC on November 7, 2021. It was produced by a fragment from Comet Encke that hit the atmosphere at about 111 000 km/h (68 970 mph). The fireball began at an altitude of about 101 km (62 mph)…

C/2014 UN271 (Bernardinelli-Bernstein) – the largest comet ever discovered

C/2014 UN271 (Bernardinelli-Bernstein) – the largest comet ever discovered

Comet Bernardinelli-Bernstein (C/2014 UN271) — the largest comet ever discovered — is heading towards our solar system and forecast to make its closest approach in 2031 at 10.1 AU or slightly farther than Saturn. The current estimate suggests its nucleus is…

Very bright Kreutz-family Sungrazing comet destroyed by the Sun

Very bright Kreutz-family Sungrazing comet destroyed by the Sun

A very bright Kreutz-family Sungrazing comet was destroyed by the Sun on May 10, 2021. The object entered the view of the SOHO spacecraft's LASCO C3 instrument early May 8 and C2 on May 10. The object appeared to be tens of meters in diameter, which is fairly…

2018 Botswana Fireball (asteroid 2018 LA) likely a fragment of asteroid Vesta

2018 Botswana Fireball (asteroid 2018 LA) likely a fragment of asteroid Vesta

A large fireball that exploded over Botswana in 2018 (asteroid 2018 LA) likely originated from Vesta, the second-largest object in the asteroid belt, according to an international team of scientists who analyzed fragments recovered after the impact. Vesta is the…

Unusual ultraviolet aurora spotted around a comet for the first time

Unusual ultraviolet aurora spotted around a comet for the first time

ESA's Rosetta mission has revealed that its target comet, Comet 67P/Churyumov-Gerasimenko, has its own far-ultraviolet aurora. This is the first time such electromagnetic emissions in the far-ultraviolet have been detected on a celestial object, aside from any…

Unusual triple comet flies past the Sun

Unusual triple comet flies past the Sun

The Solar and Heliospheric Observatory (SOHO) spotted an unusual object identified as a triple comet flying past the Sun in early August. Although the satellite captures comets all the time– most of which are Kreutz sungrazers– the particular object is not a…