Earth, asteroid and NASA

BS4 may be anywhere between 17 and 40 feet across, and will approach at about twice the distance between the Earth and moon.
The planet that the asteroid was once a part of contained a salty ocean. Scientists found 11 minerals in the samples, but more importantly, they found 14 out of 20 key building blocks for life -- at ...
Astronomers have spotted a space rock, an estimated 200 feet in length, that they say just may be headed for Earth.
YR4 might force NASA to plan the first-ever space mission to push an asteroid away from Earth. Most likely, though, it's a non-threat.
Astronomers are closely monitoring Asteroid 2024 YR4 as it heads towards Earth. Should we be worried about it? Here's what ...