Humanity is super-stoked about the idea of finding signs of ancient life on Mars. So much so we keep sending increasingly more advanced machines, like, to search for evidence. But we might need to take a much deeper look into the matter, a new study suggests.
A research team led by Rutgers University planetary scientist Lujendra Ojha examined a perplexing problem when it comes to the long-ago habitability of Mars: the paradox of the faint young sun.
The sun wasn’t always the perky ball of heat and light we know today. “About 4 billion years ago, the sun was much fainter so the climate of