The rover spotted a tiny Martian rock that looks eerily like a fossilized book on the surface of the Red Planet.
Based on reported sightings, some scientists say the iconic creature probably survived until the late 1980s or 1990s, but others are skeptical.
NOAA researchers have predicted that an ocean-heating event known as El Niño is probably going to arrive in the next few months and persist into 2024.
A huge drop in sea levels trapped extremely salty water in the Indian Ocean, which then gushed into the Atlantic when currents changed 15,000 years ago.