Astronomers discover an unusual neutron star that emits double pulses, challenging theories about stellar remnants.

If it’s real, some may question whether something with a mass about three times Pluto’s counts as a planet at all.

And, in fact, an even greater opportunity lies in the months ahead, when yet another planet joins the "parade." Which planets will be visible in January? Jan. 25 is a good time to look at the arc ...

"What If is an epic exploration of possibilities. What If is a Webby Award-winning science web series that takes you on a journey through hypothetical worlds and possibilities, some in distant corners ...

"These multi-planet viewing opportunities aren't super rare, but they don't happen every year, so it's worth checking it out," NASA added. A sky chart shows the planetary lineup visible after dark ...

Some of the brightest planets in the night sky are visible right now, with six of them forming a 'planet parade' across the night sky for at least the next month. Just after sunset tonight ...

Such an event is commonly known as a "planet parade," though NASA noted that the moniker is not a technical astronomical term. Here's a list of the planets that will be visible in some for this ...

That means the Sun and the "Red Planet" are directly opposite from each other with Earth in the middle. According to NASA, this is around the time when the planet is closest to Earth, making it ...

“Every comic creator has their own personal white whale — that singular property they’ve been itching to make their mark on — and for more than a decade Captain Planet has been mine ...

"These multi-planet viewing opportunities aren't super rare, but they don't happen every year, so it's worth checking it out," NASA added. Since the beginning of January, Venus and Saturn have ...

Also known as a planet parade, six planets will line up in a row across the night sky from about 21 January. Venus, Mars, Jupiter and Saturn will be visible to the naked eye and Neptune and Uranus ...