Eta Aquarid meteor shower peaks this weekend. Here's how you can see the celestial event.

The Eta Aquarid meteor shower peaks this weekend. Astronomers say it should be visible in both hemispheres. The Eta Aquarids occur every year in early May.

On this day in history, April 25, 1990, Hubble Space Telescope placed in orbit by Space Shuttle Discovery

The Hubble Space Telescope, proclaimed by NASA to be the most significant advance in astronomy since Galileo, was placed in orbit on this day in history, April 25, 1990.

'Once-in-a-Lifetime' Cosmic Event Will Be Visible This Year

A "once-in-a-lifetime" opportunity to see the light from a star that exploded 3,000 years ago is coming this year, NASA officials say.

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Lyrid meteor shower peaks this weekend: How to catch a glimpse of the celestial event

The Lyrid meteor shower, occurring annually in mid-to-late April, is currently underway with its peak activity expected Sunday into Monday, officials say.

Rare star explosion expected to be 'once-in-a-lifetime viewing opportunity,' NASA officials say

Astronomers predict that a star system located 3,000 light years away from planet Earth will become visible this year as a nova explosion is to occur, NASA officials say.

'Peculiar' black hole discovered in Milky Way, scientists say

Astronomers have detected a black hole positioned roughly 2,000 light-years from Earth in the constellation Aquila. It was identified through the Gaia mission.

Spaced out: Sheila Jackson Lee tells Texas students 'planet' moon is 'made up of mostly of gases'

Rep. Sheila Jackson Lee, a Democrat from Texas, told students the moon was a planet and that it was made up of gases while speaking to them before the solar eclipse on April 8.

If you missed the fun, look out for these upcoming total solar eclipses

Total solar eclipses occur every few years, but they are often only able to be seen from somewhere in the ocean. These are the next times a total solar eclipse will pass over land.