Coming to a sky near you: Comet SWAN at its best

Comet C/2020 F8 (SWAN), perhaps the brightest comet we will see this year, is at its best from now until mid-June. It should be visible in from the UK in the northwestern sky after sunset, close to the horizon.

Chile, Argentina prepare for spectacular solar eclipse

Day will briefly turn to night Tuesday over large parts of Chile and Argentina as a total eclipse of the Sun plunges a vast swath of the southern Pacific and the cone of South America into darkness.

The faint glow of cosmic hydrogen

A study published recently in Nature has revealed the presence of a hitherto undetected component of the universe—large masses of gas surrounding distant galaxies. An international team from some 10 scientific institutions ...

A quiet Sunday night discovering a supermassive black hole

Earlier this year, on a quiet Sunday night, my colleague Jack and I found the fastest-growing supermassive black hole in the known universe. We were fortunate to be part of the team that made one of the greatest discoveries ...

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