A seemingly small planetary neighbor may play a larger role in Earth’s climate than previously thought. Mars is only about ...

If I were on Mars, how often would I see Earth transit the Sun? Steven RiserConyers, Georgia From Mars, Earth transits the Sun four times in a 284-year cycle. The transits occur in either May or ...

Mars didn’t always look like the barren world we see today. Over billions of years, the Sun’s solar wind stripped away much of its atmosphere, helping transform it from a warmer, wetter planet into a ...

A potential new mineral on Mars forms when iron sulfates are heated above 100°C. Data from Valles Marineris regions suggest ...

NASA launched the Mars Reconnaissance Orbiter in August 2005 and the following year, on March 10, it entered the orbit of the red planet where it continues to operate today. Data returned to Earth by ...

The UK Space Agency and Cambridge-based firm LinkGevity are working with Lithuania-based Delta Biosciences to see how ...

Humans were not designed for space. Ironically, because we insist on going there anyway, scientists now know from studying astronauts that the lack of Earth’s gravity can wreak health havoc, such as ...

NASA’s Curiosity rover is investigating strange spiderweb-like ridges on Mars that may reveal a hidden chapter of the planet’s watery history. These “boxwork” formations likely formed when groundwater ...

NASA’s Mars Reconnaissance Orbiter has located a fresh crater on Mars after 20 years of monitoring, providing high-resolution ...

Asteroid 2026 EG1 was discovered on March 8, less than one week ago.

NASA's huge Space Launch System rocket has been repaired and is ready for rollout back to the launch pad next week.

NASA's moon landing program delay represents the latest in in technical, budgetary, workforce and public perception ...