On Jan. 5, 2020, astrophysicists heard a chirp from a distant part of the cosmos, some 900 million light-years away. The fleeting sound was unlike any they’d heard before and was caused by a great ripple in space-time — a …
by Geoffrey Grider A baffling and mysterious radio signal has been spotted by a telescope in Canada, and it’s one of the lowest in frequency to date. Space is an amazingly endless place, populated with dazzling arrays of planets, moons, …
On 5 to 14 April 2017, the team behind the Event Horizon Telescope hopes to test the fundamental theories of black-hole physics by attempting to take the first ever image of a black hole’s event horizon (the point at which …