Earth is now closer to the sun than at any other time of the year. Here's why our planet's axial tilt, not proximity to the ...

"Springtime on Earth has lots of trickling as water ice gradually melts. But on Mars, everything happens with a bang," Serina ...

Or be patient: Starting Sunday, days will get a little bit longer in the Northern Hemisphere every single day until late June. These annual changes in sunlight as the Earth revolves around the sun ...

Mars experiences explosive changes during spring. Ice sublimates directly into gas, causing avalanches and geysers.

The winter solstice marks the official start of the astronomical winter, as the sun reaches its most southerly point in the ...

Or be patient: Starting Sunday, days will get a little bit longer in the Northern Hemisphere every single day until late June. These annual changes in sunlight as the Earth revolves around the sun ...