杏吧原创

Galaxy NGC5128, taken by the Chandra X-Ray Observatory

Space

Mystery cosmic objects light up in X-ray then go dim in an hour

Digging through old observations of galaxies, astronomers have discovered X-ray flares from objects they can鈥檛 yet identify

A diagram showing the location of the Bo枚tes Void in the sky

Space

Space is full of gigantic holes that are bigger than we expected

galaxy map

Space

How to iron out gravity’s creases in our map of the universe

Hypothetical view of an exoplanet with two suns

Space

Giant hidden Jupiters may explain lonely planet systems

Aerial view of the 500-metre-wide telescope dish

Space

Biggest radio telescope on Earth ready to receive alien signals

Gas giant exoplanet in front of star

Space

Puffed-up exoplanets inflate with heat from their stars alone

Artist's depiction of a pulsar approaching a disc of rubble

Space

Mystery radio bursts may be pulsars bumping into asteroids

Space

World’s largest telescope array takes its deepest view yet

A black hole swallowing a star

Physics

Reality guide: Six problems physics can’t explain

A simulation of the structure of the galaxy

Physics

Reality guide: The essential laws of cosmology

Our expanding universe began in a big bang 13.8 billion years ago. But what underlying laws of nature shape our vision of time and space?

Physics

Reality guide: The essential laws of quantum physics

Physics

Reality guide: Six radical ideas to change physics

Physics

Gaia’s new star map will also reveal asteroids and dark matter

Space

Gaia鈥檚 map of 1 billion stars is the clearest view of our galaxy