Astronomers think that a dwarf planet hiding in the middle of our solar system ... belt between Mars and Jupiter. A new study ...

With a radius of 2,106 miles, Mars is the seventh largest planet in our solar system and about half the diameter of Earth. Its surface gravity is 37.5 percent of Earth’s. Mars rotates on its ...

While Earth's atmosphere and magnetic field protect the planet from these solar events, Mars has no such protection. But the sun's solar particles could be a boon for studies of — and travel to ...

Unlike Earth, Mars lacks a global magnetic field and interacts with the solar wind directly. Over billions of years, this interaction has stripped much of the Martian atmosphere, transforming the ...

New Delhi, Solar winds may have led to Mars losing its atmosphere, according to a computer simulation study which confirms the long held belief that planets need a protective magnetic field to ...