How did we get here? How have we ended up as the most advanced species on a small blue-green planet, orbiting a seemingly insignificant star, in one of the hundred billion galaxies in the Universe?

But finding definitive evidence of past or extant life will likely require humans on the surface. And if we find evidence, ...

The geocorona is invisible to human ... the sun has an envelope of hydrogen extending far beyond the moon's orbit. Behind Earth, on its dark side, pressure from the solar wind pushes the planet's ...

NASA aims to travel to the moon again—and beyond ... when its Hope spacecraft heads to the red planet. While there are no plans yet to send humans to Mars, these missions—and the discoveries ...

They will spend around ten days in space, traveling to the farthest distance from Earth humans have ever reached, 4,600 miles (7,400 km) beyond the Moon. During their journey, which, again ...

Elon Musk's interest in sending humans to Mars is no secret − ... a few billion years from now – the expanding sun that gives our planet life will eventually destroy Earth.