Potentially, observers in plenty of star systems could have detected Earth sometime in the last 5,000 years. More stars will soon move into positions that would let them see our planet.

Early risers across the Northern Hemisphere will be able to see an eclipse Thursday morning when the moon passes between the Earth and the sun.

For a long time, the Catholic Church rejected scientific findings that conflicted with its doctrine, even persecuting Galileo. Now the Vatican looks to promote its observatory as a bridge to science.

None of us is perfect, and sometimes the Hubble Space Telescope just flat-out points to the wrong spot in the sky. This has been happening more than ever in the last couple of years.

The Alpha Monocerotids meteor shower will be visible for Georgia residents late Thursday night, weather permitting. Fernbank Science Center astronomer...