The yet undiscovered "Planet X" triggers comet showers linked to mass extinctions at intervals of approximately 27 million years, researche...

Well, a new hypothesis suggests that this potential extra planet could be responsible for mass extinctions on Earth.

A probe, a flyby, a journey of three billion miles. As new horizons open up, the celestial body makes a comeback on Earth.

The week after the Budget is a busy time for our office fax machine.