Medicine & TechnologyA great white shark was seen in 2017 with a freshly torn dorsal fin, but five years later, it re-emerged with a healed injury. Check out how sharks could have self-healing capabilities and what humans can learn from them.
For those of you in the states enjoying a welcomed break from the summer sun, today you may just get more than you bargained for. As the moon passes this afternoon across the northern hemisphere, the usually invisible transition will make its mark in daylight as it eclipses part of the sun. And so long as the clouds stay clear of the view, you may just have an interesting afternoon show to look out for.