solar system

April 17, 2025 9:42 AM

Scientists find strongest evidence yet of life on an alien planet

In a potential landmark discovery, scientists using the James Webb Space Telescope have obtained what they call the strongest signs yet of possible life beyond our solar system, detecting in an alien planet's atmosphere the chemical fingerprints of gases that on Earth are produced only by biological processes. The two gases - dimethyl sulfide, or DMS, and dimethyl disulfide, or DMDS - involved in Webb's observations of the planet named K2-18 b are generated on Earth by living organisms, primari...

October 17, 2024 9:04 PM

Astronomers trace the origin of meteorites that have struck Earth

Meteorites - rocks that fall to Earth from space - have pelted our planet from its birth about 4.5 billion years ago to today, often causing scant damage but sometimes triggering cataclysms. But from where exactly are these space rocks coming? New research has the answer. By studying the composition of meteorites that have landed over the years and the asteroids populating our solar system, astronomers have determined that about 70% of known meteorite impacts came from just three groups of aste...

June 3, 2024 11:09 AM

China’s lunar probe could return with answer to origins of solar system

China's Chang'e-6 lunar probe looks set to begin its historic journey back to Earth from the moon's far side after collecting samples that scientists expect will help answer key questions about the early evolution of the solar system. Chang'e-6, named after the mythical Chinese moon goddess, was launched on May 3 from the southern Chinese island province of Hainan. The fully robotic probe landed on Sunday in a previously unexplored location in a gigantic impact crater called the South-Pole Ait...