The Apophis asteroid, once feared to hit Earth, is less than three years from making an unprecedented approach toward Earth.

Earth Day is celebrated one each spring to promote environmental protection and awareness. Celebrating its 56th year, this ...

The asteroid Apophis will pass close to Earth in 2029 and will be visible without a telescope, revealing unique changes on ...

Earth’s spin is not as steady as it looks. As ice melts and groundwater is pumped from deep aquifers to the surface, the planet’s mass is shifting, and with it the position of the rotational axis that ...

If you’ve seen illustrations or models of the solar system, maybe you noticed that all the planets orbit the Sun in more or less the same plane, traveling in the same direction. But what is above and ...