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Dead planets can ‘broadcast’ for up to a billion years, and they could tell astronomers what will happen after our sun blows up
Finding dead planets' radio broadcasts can help scientists learn how the sun's death in 5 billion years will affect our solar system.
Even if your foundation contains a high SPF, you're likely not wearing enough of it to actually keep your skin safe from sun damage.
A stunning ‘Manhattanhenge’ sunset is happening on Friday and Saturday in New York City. Here’s how to see it.
The sun will dip perfectly between buildings in Manhattan to create a spectacle of light on Friday, July 12, and Saturday, July 13, 2019.
A total solar eclipse will be visible on July 2 for the first time since 2017 — here’s how you can watch it anywhere in the world
On July 2, parts of Chile, Argentina, and the south Pacific Ocean will experience a total solar eclipse — the first such celestial event since 2017.
NASA partnered with the Exploratorium to offer a chance for the rest of the world to see the total solar eclipse via livestream on July 2, 2019.
Solar eclipses happen across the globe at least once a year. Not all of them appear over populated areas, but some may happen close to you.
The June solstice comes on Friday. Here’s why the event kicks off summer and winter at the same time.
In the northern hemisphere, June 21 will be the longest day of the 2019. But in the southern hemisphere, it will be the shortest.
The first day of spring is finally here — for about 90% of us. Here’s why equinoxes mark the changing of seasons.
The spring or vernal equinox happens at 5:58 p.m. ET on Wednesday, March 20, 2019. Here's how Earth and the sun work together to change our seasons.
Vitamin D can be very important for your overall health, but especially for your mood. We asked two experts how big that link is.
The December solstice is here. Here’s how it works and why it starts winter and summer at the same time.
The winter solstice happens Friday — if you live in Earth's Northern Hemisphere. For the Southern Hemisphere, it's the start of summer.