Solar system

One of the space rocks measures nearly 160 feet in diameter.

At maximum activity, you may be able to see between 10 and 15 Leonid meteors per hour.

The waning crescent moon will be only 15 percent full, which means viewing conditions should be favorable.

A full moon on Halloween occurs approximately every 19 years, with the feat last happening in 2001.

Scientists have been closely monitoring the massive space rock since it was discovered in 2004.

Nuclear thermal propulsion (NTP) systems are powered by a process known as nuclear fission—the splitting of atoms.

As it flies past, the space rock will be travelling at a speed of around 36,000 miles per hour.

The moon will appear just 23 percent illuminated on the night of the peak, which could help visibility.

Astrophysicist Neil deGrasse Tyson has warned of a close shave when the space rock passes on November 2.

The moon will be about 23 percent full on the peak night, which means there will be relatively dark skies.

The space rocks will all make their closest approaches to our planet within a period of around four hours.

Long-term moon missions could pose "substantial risks" to astronauts from space radiation, according to a study.

When the object flies past our planet it will be travelling at a staggering speed of more than 17,300 miles per hour.

In the Northern Hemisphere, the September equinox marks the beginning of what's set to be quite an eventful astronomical fall.

Researchers who have observed the planet using the James Clerk Maxwell Telescope (JCMT) in Hawaii, believe there is evidence to suggest alien life may exist on Venus.

Two of the asteroids will come within around a quarter of the distance between Earth and the moon.

"Too much excitement!" wrote one Twitter user in reference to the upcoming announcement.

On October 31, Uranus will be at its closest point to Earth.

A new study published with data from NASA explains that the shape of our solar system is similar to that of a deflated croissant.

"The Perseids are a major meteor shower and one of the best and most reliable of the year," said Rick Fienberg from the American Astronomical Society.

Sunspots are dark spots that temporarily appear on the solar surface.

Sturgeons are large, prehistoric-looking fish that date back as far 136 million years ago.

"Everything this helicopter does will be a first-time event," said NASA engineer Nagin Cox.

The rover will use its suite of scientific instruments to search for signs of ancient microbial life on the red planet.

"Now is the best time of year to get outside and watch meteors," said Mike Hankey from the American Meteor Society.

The asteroid came within just 11 percent of the average distance between the Earth and moon.

Two of Saturn's many moons, Mimas and Enceladus, can be seen in the Hubble image.

The Tianwen-1 spacecraft is scheduled to arrive on the red planet in February, 2021.

In the Northern Hemisphere, the comet should be easily visible in the evening sky for the rest of July.

If you want to see the spectacle, you will need to head outside around an hour before sunrise on Sunday.