A strange space object approaching Earth is about to get captured by our gravity and become a new, temporary “mini-moon.” The object, which is dubbed 2020 SO, could be an asteroid. Or it could be part of the Surveyor 2, a robotic spacecraft launched to the moon on Sept. 20, 1966, according to the science and nature website EarthSky.org Traveling at the extremely-slow-for-space speed of 1,880 miles per hour, the object was seen last week by astronomers in Hawaii, and it’s on course to be captured by Earth from October 2020 until around May 2021, according to EarthSky. Astronomers here...