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 discovery of a new asteroid this month has turned out to be Elon Musk's Tesla Roadster launched by SpaceX in 2018.
Scientists from the National Aeronautics and Space Administration (Nasa) say they have spotted an asteroid that could smash ...
The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...
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.