By Eddie Irizarry via Earthsky Small asteroid 2021 GW4 will pass extremely close to Earth on Monday, April 12, 2021. It'll pass just 12,313 miles (19,816 km) from Earth's surface, or about 5% the Earth-moon distance. Amateur astronomers using telescopes can see it passing the galaxy Messier 95 on the night of Sunday, April 11. A recently detected space rock will pass by our planet on Monday, April 12, 2021. It'll come extremely close, far closer than geostationary satellites orbiting some 22,000 miles (35,786 km) above Earth. The small asteroid has been designated as 2021 GW4. It is estimated to be about 16 feet (5 meters) in diameter. It's a small space rock, and there's no risk of impact, astronomers say. NASA/JPL calculations indicate asteroid 2021 GW4 will pass at just 12,313 miles (19,816 km) from Earth's surface, which is about 5% the Earth-moon distance. The space rock is traveling at 18,706 miles per hour (30,104 km/h) or 8.36 kilometers per second, relative to Earth. The