The formation of the sun, the solar system and the subsequent emergence of life on Earth may be a consequence of a collision between our galaxy – the Milky Way – and a smaller galaxy called Sagittarius.
The Sagittarius dwarf galaxy has been orbiting the Milky Way for billions for years. As its orbit around the 10 000 more massive Milky Way gradually tightened, it started colliding with our galaxy's disc. The three known collisions between Sagittarius and the Milky Way have, according to a new study, triggered major star formation episodes, one of which may have given rise to the Solar System. Image via ESA.
“For the dinosaurs, the worst-case scenario is exactly what happened … because it put more hazardous debris into the upper atmosphere and scattered it everywhere, the very thing that led to a nuclear winter.”
Image via Imperial College London.
Happy birthday June babies! Your month has 3 birthstones – pearl, moonstone, and alexandrite.
Photo via Valentyn Volkov/Shutterstock
Beginning on June 5, we’ll have 3 eclipses in one lunar month. It’ll be the last time this happens until the year 2029. From 2000-2050, there are 3 eclipses in one lunar month 14 times. Meanwhile, in a calendar month, 3 eclipses are rare.
People watch a partial eclipse in Belfast, Northern Ireland, on March 20, 2015. Image via NASA
/ Robin Cordiner.