Related topics: nasa · night sky

An asteroid just buzzed past Earth, and we barely noticed in time

A 100-metre-wide asteroid passed just 70,000km from Earth on Thursday, Australian time. It was discovered by the Brazilian SONEAR survey just days ago, and its presence was announced mere hours before it zoomed past our planet. ...

Modeling early meteorite impacts on the moon

As our solar system was forming nearly four and a half billion years ago, a planet-sized object struck the early Earth, leading to the formation of the moon, possibly from a hot, spinning cloud of rock vapor called a synestia. ...

FRIPON camera atop ESTEC

Asteroid researcher Kristiane Schmidt and ESA data technician Andrea Toni inspect a camera fixed to the five-storey-high rooftop of ESA's technical heart in the Netherlands, keeping a constant watch for fireballs – very ...

From Chelyabinsk to Cuba: The meteor connection

On February 1, 2019 a bright meteor crossed the sky over Cuba in the middle of the day. The phenomenon, which was followed by a smoke trail (a characteristic cloud left by the burn in the atmosphere of a meteoroid) and a ...

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Meteoroid

A meteoroid is a sand- to boulder-sized particle of debris in the Solar System. The visible path of a meteoroid that enters Earth's (or another body's) atmosphere is called a meteor, or colloquially a shooting star or falling star. If a meteoroid reaches the ground and survives impact, then it is called a meteorite. Many meteors appearing seconds or minutes apart are called a meteor shower. The root word meteor comes from the Greek meteo¯ros, meaning "high in the air". The Minor Planet Center does not use the term "meteoroid".

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