Polarity changes can occur within centuries, not just over millennia.
The Parker Solar Probe will zoom toward the sun at speeds of up to 430,000 miles per hour, making it the fastest spacecraft ever flown.
Reports of a cloud of darkness blocking out the Sun at noon above northern Siberia have raised questions.
On Friday, the Moon will obscure a chunk of our star.
The Malanda Millaa Millaa Road was only recently repaired, but it did not hold up well in the sun.
The city zoo has made some provisions for a pleasant summer after last year's drab and rainy weather.
"We [may] have at our fingertips the starting materials of planet formation from 4.6 billion years ago."
The image stitches together several photos to show off the details where night and day meet.
Bursts of energetic particles could have helped build the bonds to sustain life.
The cheap coin has surged into the top 15 cryptocurrencies in the world by market cap.
The planet Mercury was the key for this latest feat.
The spacecraft will be exposed to light 500 times brighter than what we see.
The space agency has big goals for 2018.
Even just four months after the eclipse, scientists have learned a ton from the day the sun went out.
"It's like the eclipse shape was burned into her retina," a doctor said about one patient.
This kind of effect has been seen in the U.S. after fires, too.
The scientists also say similar shields could already be in use by advanced alien civilizations.
On the autumnal equinox the orientation of the Earth to the sun means night and day are of equal length.