
How to watch 'city killer' asteroid pass closer to Earth than the Moon
An asteroid big enough to wipe out a city is going to pass harmlessly between Earth and the moon's orbit this weekend, missing both celestial bodies.
An asteroid big enough to wipe out a city is going to pass harmlessly between Earth and the moon's orbit this weekend, missing both celestial bodies.
The Webb Space Telescope observed the rare and fleeting phase of a star on the cusp of death.
Japan's space agency said there was no hope of the rocket completing its mission.