The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

A world-leading designer of space robots says gigantic new rockets being tested by billionaires Elon Musk and Jeff Bezos are ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

Experts told Newsweek about the difficulties of reaching Mars as the United States faces complex challenges in space policy.

Mars' southern hemisphere absorbs a lot of the sun's energy during the Red Planet's spring, and that may be causing Mars' ...

Buttes and mesas in Mars' Chryse Planitia contain clay minerals made from liquid water interacting with the rock nearly 4 ...

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The enchanting dunescape stretches over 43 miles (70 km) along the coast and over 30 miles (50 km) inland. Lençois translates ...

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...

Creation-Space launches accelerator to invest in young startups tailoring tech solutions toward a sustainable human presence ...

During his inaugural address, President Donald Trump said he wants 'American astronauts' on Mars. Where does a future Mars ...

President Donald Trump made a bold promise to America minutes after taking the Oath of Office: pledging that an American flag ...