earth1d
Clay mounds and hills found on Mars tell us more about water on the Red Planet
The northern plains of Mars, marked by thousands of mounds and hills, hold significant evidence of the planet's watery past.
earth2d
Clear evidence of liquid water, not just frozen ice, discovered on Mars
New research reveals ancient ripples on Mars, providing compelling evidence of long-lost lakes that once existed 3.7 billion ...
How to see 6 planets align in a rare night-sky parade in January and February
Six planets are parading across the sky, appearing as some of the night's brightest stars. A few easy tips can help you ...