Moon’s precursor planet, Theia, disappeared billions ago, leaving scientists no direct chemical evidence to support the hypothesis. Now a team of astromers in France, Germany and the United States ...

Earth may have a moon today because a nearby neighbor once crashed into us, a new analysis of Apollo samples and terrestrial rocks reveals. NASA's Perseverance Mars rover recently came across an odd ...

The interstellar comet 3I/ATLAS will make its closest approach to Earth on Dec. 19. Originating from outside our solar system, the comet is not a threat to Earth. While not visible to the naked eye, ...

European safety regulators have issued an emergency directive after flight-control data on Airbus A320-family jets was found to be vulnerable to high levels of solar radiation. Airbus says the ...

In the turbulent first 100 million years after the sun formed, the inner solar system was crowded with dozens to hundreds of planetary embryos — moon- to Mars-size worlds that frequently collided, ...

After a planned 'flagship' mission to Jupiter and its moons, the agency's next major planetary mission could be sent to Earth's 'evil twin' NASA's Swift telescope, which usually studies powerful ...