sun World Asteroid Day 2023: Know all you need to know about small, rocky objects that orbit the sun 10 months ago The annual World Asteroid Day is celebrated on June 30 in the honour of the Tunguska event in 1908, when… Parker Solar Probe, a NASA spacecraft, becomes the first to ‘touch’ the sun 2 years ago The Parker Solar Probe has become the first spacecraft to "touch the sun," sixty years after NASA set the aim…