Gianluca Masi (Virtual Telescope Project) and Michael Schwartz (Tengara Observatories) captured this view of the 12 foot wide asteroid 2017 GM as it approached Earth April 4, 2017 using a telescope in Arizona. The telescope tracked the asteroid, meaning the surrounding stars appear as streaks. (Gianluca Masi/The Virtual Telescope Project; Michael Schwartz/Tengara Observatories, Ltd)
A car-size asteroid was caught on camera just before it approached within 10,100 miles of Earth today April 4 — less than one-twentieth the distance from Earth to the moon.
The 12-foot-wide celestial visitor, called 2017 GM, whipped by at 11.5 miles per second compared to Earth early this morning. Scientists at the Mount Lemmon Survey in Arizona first spotted the asteroid yesterday, and researchers with Virtual Telescope Project and Tengara Observatories also snapped a photo before its closest approach with an Arizona telescope.
Based on its orbit, the little asteroid likely last passed by Earth in March 1961, according to NASA's Jet Propulsion Laboratory. However, it was much farther away that time — about 93 times the average Earth-moon distance, . It whipped far out after that, but eventually swung by Mars and Venus in 2013 and 2014, respectively, before making its way back to Earth. It's the 15th object to make a close approach to Earth this month , and it came by far the closest to our planet, according to the NASA data.
In March, a 10-foot-wide object came 1,000 miles closer to Earth's path. Like that asteroid, 2017 GM came in closer than satellites in high Earth orbit.
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