June sky shows planets before sunrise, Mars near Regulus, the glowing Milky Way, and the solstice with shifting daylight hours.

Scientists may have found a planet orbiting two brown dwarfs at a wild 90-degree tilt—something never seen before.

Watch a Long March 10 rocket launch a crewed spacecraft and lander to the moon in this animation from the China National ...

JF flew about 199,000 miles (320,000 km) away from Earth. It's estimated size is about 34 feet wide (10 meters), roughly the ...

The growing distance means that our planet’s spinning ... both the Earth and the moon will be gone long before then. That’s because in about five billion years, the sun expands into its ...

The breathtaking images are a reminder of the grandiosity of cosmic objects and how small Earth is, spinning around ... On April 8, the Moon eclipsed the Sun over a swath of North America, giving ...

Earth, sun, moon: three objects ... The problem again is the size of things. In my animation, not only are the objects too big but the orbital radius of the moon around Earth is way too big.

Begin with a short video or animated presentation ... gravity affects them. Use a spinning object (like a ball on a string) to illustrate how planets orbit the Sun due to gravity.

Earth is about to receive a visitor from outer space. No little green men, alas, but a tiny and temporary moon ... of this animation, Earth (blue dot at center) is stationary and the Sun is ...

Imagine waking up one day to find that the Earth had suddenly stopped spinning ... the Sun—a condition known as tidal locking. This is seen in other celestial bodies, such as the Moon, which ...

But do we know which way Earth is spinning? And is it the same direction as the sun and the other planets ... Uranus' orbit used to have a massive moon whose gravitational influence tilted the ...

THE PERFECT day should have 86,400 seconds: 24 hours for Earth to spin around its axis, 60 minutes in each hour, and 60 seconds in each minute. But the apparent precision of these simple ...