The Canadian Press on MSN21 分钟
Why asteroid 2024 YR4 is unlikely to hit Earth in 2032 and how scientists keep track
The threat of a newly discovered asteroid has risen slightly in the past few weeks, as the world’s telescopes rush to track ...
Largest celestial object of its kind discovered in the distant universe
Astronomers have spied a monster radio jet in the distant universe that's twice the width of the Milky Way galaxy. The ancient object formed when the universe was less than 10 percent of its current ...