Astronomers using NASA’s Hubble Space Telescope have measured the rotation rate of an extreme exoplanet by observing the varied brightness in its atmosphere. This is the first measurement of the ...

Researchers at Nagoya University in Japan have conducted the most detailed simulation of the interior of stars and disproved a theory scientists believed for 45 years: that stars switch their rotation ...

There are some clocks, mostly in or around international airports, which have multiple faces to show the time at various ...

Observations of the sky recorded thousands of years ago continue to play a remarkable role in modern science, demonstrating that careful human observation has long-lasting value. One particularly ...

The workings of our solar system are roughly the same now as they have been for millions of years. Moons circle their planets, the planets circle the sun, the sun’s magnetic fields and sunspots wax ...