A newly observed interstellar comet is the most pristine visitor from outer space ever seen in our Solar System, according to a pair of studies released Tuesday detailing its unique characteristics.

Scientists have discovered a comet traveling one way out of the solar system after a close encounter with Saturn. The comet, ...

Do the periods of comets decrease because they lose mass every time they get near the Sun? Robert BaileyConover, Wisconsin ...

So what is it? At the moment, the best guess science can offer is that it’s an interstellar comet which, due to its long trip through deep space, has been stripped of its surface ice.

Artist’s depiction of interstellar comet Oumuamua (Nasa/Esa) The massive object flew through the solar system at a velocity of about 6km per second, coming within 20 astronomical units of the sun and ...

This first observation of an interstellar comet was falling past Earth at 110,000 miles per hour. The Hubble Space Telescope snapped it in October and it had left us by mid-2020, but “Comet ...

In 2017, astronomers discovered the interstellar visitor 'Oumuamua ... skywatching events and more! When a comet gets close to the sun, the sunlight heats up the ice, causing it to sublimate ...

Artwork: The interstellar visitor was detected in our Solar System last year The first known comet to visit us from another star system has an unusual make-up, according to new research.

Organic molecules, the building blocks of life, have been discovered across space—from interstellar clouds to ... The anticipated Comet Tsuchinshan-ATLAS (C/2023 A3) has been visible in the ...

The latest crop of NASA-backed concepts for far-out space exploration includes “borebots” that could drill as far as a mile beneath the Martian surface in search ...