No asteroid threatening Earth in September

Despite rumors, no asteroid threatens Earth. All known Potentially Hazardous Asteroids have less than a 0.01% chance of hitting Earth in the next 100 years, says NASA.

Space weather threatens equatorial regions too

Damaging electric currents in space affect Earth's equatorial region, not just the poles, according to new research.

Astronomers find teeny supermassive black hole

In a dwarf galaxy 340 million light years away, astronomers have found the smallest black hole ever observed in the center of a galaxy.

Cassini’s last close flyby of Saturn moon Dione today

The Cassini spacecraft will zip past Saturn's moon Dione on Monday, August 17 . It will be the spacecraft's final close flyby of this icy satellite.

Great Perseid photos here

Have you seen Perseid meteors in your sky? If you have had cloudy skies - or even if not - enjoy these images from all around the world.

Charting the slow death of the universe

A study of 200,000 galaxies found they had lost half their energy in just 2 billion years.

Swirling mystery of Jupiter’s Great Red Spot

The Great Red Spot has been swirling wildly over Jupiter for the past 150 years, but scientists still aren't sure what causes the gigantic storm's reddish hues.

Dates of sun’s entry into each zodiac constellation

Dates of sun's entry into each zodiacal constellation and the corresponding ecliptic longitude (sun's position in degrees, east of the March equinox point).

Astronomers measure most distant galaxy

The galaxy, called EGSY8p7, is about 13.2 billion light-years away. That means astronomers are now seeing it as it existed just 600 million years after the Big Bang.

Video: Cruise over dwarf planet Ceres

Take a tour of weird Ceres! Visit the mysterious bright spots and a 4-mile-tall mountain. And get your red/blue glasses out for a global view in 3D.

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