Measure Distant Asteroids With a DIY Rig
I’ve seen two total solar eclipses and have been duly impressed by what happens as the moon casts its shadow on Earth. But recently I’ve become even more intrigued by a similar phenomenon that doesn’t involve the sun or the moon—something called an as…
NASA built the Roman Space Telescope to study dark matter, but it can also help protect Earth from killer asteroids
NASA’s Roman Space Telescope wasn’t designed for asteroid hunting, but its massive field of view makes it a powerful addition to Earth’s planetary defense network.