The tiny planet is called 2018 VG18 and it’s about 3.5 as far away as Pluto, some 18 billion kilometers (11.2 billion miles) away. That’s more than 100 times the distance between the Earth and the Sun — and about the same distance (the boundary of the solar system) where NASA probe Voyager 2 reached interstellar space.
There are eight planets in our Solar System (sorry Pluto), but collectively, these planets host over 175 moons, one or two of which may even harbor life. Indeed, our galaxy, based on what we observe here, could be bursting with exomoons, a significant number of which may be capable of fostering life, according to new a new study.
There are 500,000 pieces of space junk orbiting the earth, many of which significantly endanger satellites and crewed space missions. to test various techniques of collecting and disposing of space junk: Orbital garbage collection!
For the first time ever astronomers have studied an asteroid “ʻOumuamua” that has entered the Solar System from interstellar space. Observations from ESO’s Very Large Telescope in Chile and other observatories around the world show that this unique object was traveling through space for millions of years before its chance encounter with our star system. It appears to be a dark, reddish, highly-elongated rocky or high-metal-content object.