Asteroids vs Comets vs Meteors: What Is the Difference Between Asteroids, Comets, and Meteors

Simulations shed light on how snowman-shaped body in Kuiper belt may have formed

Research adds weight to theory Arrokoth’s two lobes produced by gravitational collapse – and reveals processIt is the most distant and primitive object ever visited by a spacecraft from Earth: now researchers say they have fresh insights into how the ultra-red, 4bn-year-old body known as Arrokoth came to have its distinctive snowman-like shape.Arrokoth sits in the Kuiper belt, a vast, thick ring of icy objects that lies beyond the orbit of Neptu…

Atmospheric pollution caused by space junk could be a huge problem

After a Falcon 9 rocket stage burned up in the atmosphere, vaporised lithium and other metals drifted over Europe. This growing type of pollution could destroy ozone and form climate-warming clouds

NASA scientist warns there’s no way to stop thousands of city-killing asteroids from striking Earth: ‘It keeps me up at night’

Planetary defense expert Kelly Fast is warning that humanity is defenseless against up to 15,000 undetected, near Earth asteroids that have the potential to take out a city.

Asteroids vs Comets vs Meteors: What is the difference between asteroids, comets, and meteors

Science News: Space around the Sun contains far more than planets. Scattered through it are smaller bodies made of rock, metal, ice and dust. These objects move on .

Thousands of ‘city-killer’ asteroids threaten Earth and Nasa can’t find them

Astronomers do not know where thousands of “city-killer” asteroids are, Nasa’s head of planetary defence has admitted. Dr Kelly Fast, who leads the agency’s...

Researchers Suggest Saturn's Titan Moon Formed in a Single High-Energy Impact Event

New research suggests Saturn’s largest moon Titan and its iconic rings may share a violent origin. Simulations indicate Titan formed after a massive collision between two moons about 100 to 200 million years ago, resurfacing Titan and altering its orbit. The resulting instability likely shattered smaller moons, sending icy debris inward to create Saturn’s surprisingly young rings. Scientists say future missions could uncover evidence confirming …