Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby sun-like star, providing a precious peek into the dawn of our own solar system.

"For the first time, we have identified the earliest moment when planet formation is initiated around a star other than our sun." ...

Because Pluto is so dim, you need a telescope to see it. “A backyard telescope could do it under the right conditions,” says ...

Mars is easiest to see when it’s closest to Earth, which happens about every two years. This event is called “opposition.” In ...

Find out when the next full moon will light up the night sky. Discover its phases and mysteries with ExtremeTech’s guide.

The full moon will come "with a celestial bonus—setting in the early morning sky near a dazzling alignment of Saturn, Venus, ...

The moon will be 99% full Friday night, and with mostly clear skies expected for Louisville in the evening, tonight is a good ...

The Old Farmer's Almanac, which began publishing full moon names in the 1930s, says some Native American tribes called July's ...

At 107, Alberta Bailey is one of Florida's oldest residents. Even her great-great-grandchildren attended her birthday party ...

The solar system’s largest planet return to the sky on Wednesday, July 9, beginning Jupiter’s slow rise to prominence.

Venus: Venus dazzles in the eastern sky before sunrise, shining brightly for a couple of hours each morning. It’s joined by ...

I pick out North America’s celestial highlights for the week ahead (which also apply to mid-northern latitudes in the ...