Astronomers have discovered six asteroids that are ‘potentially dangerous to Earth’. But is there a reason to panic? Venus, ...

Billions of years from now, the Sun will swell into a red giant, swallowing Mercury, Venus, and Earth. But that’s not the ...

A FIELD of at least 20 asteroids has been found lurking near Venus, having previously been hidden by the Sun’s glare, experts ...

Milankovitch cycles are long-term variations in Earth’s orbit and tilt that have a profound impact on our planet’s climate over tens of thousands to hundreds of thousands of years. These cycles,named ...

Twenty years ago, the US Congress instructed NASA to find 90 percent of near-Earth asteroids threatening Earth.

Earth’s orbit around the Sun is not circular, but an ellipse that is slightly elongated with an eccentricity of 0.017. (An eccentricity of 0 is a circle, while the dwarf planet Pluto has a ...

Astronomers have just discovered a new celestial body in our solar system that could challenge major space theory. 2017 OF201 ...

Zero equates to a perfectly circular orbit. In our solar system, Earth has an eccentricity of 0.02, while Pluto’s highly oval-shape orbit around the sun is considered 0.25. The newly discovered ...

A 128-minute orbit, according to Kepler's third law, works out to a semi-major axis of 8,413 km (5,228 mi). Such an object with less than 0.25 eccentricity (a roughly circular orbit), therefore ...

The shape of an object’s orbit is specified by a characteristic called its eccentricity, or deviation from a circle. Something on a circular orbit has an eccentricity of 0. An object with an ...

The moon will soon have a companion in Earth's orbit for a limited time ... asteroids are "minor bodies moving in orbits with low eccentricity, low inclination and Earth-like period." ...