NASA detects multiple asteroids approaching Earth at alarming speeds.

An asteroid the size of 18 walruses is set to pass by the Earth on May 21, according to NASA's asteroid tracker. The asteroid, named 2023 JK, is estimated to be 64 meters in diameter and will pass around 1.65 million kilometers away from Earth. While humanity is at no risk of being killed by asteroids any time soon, walruses are under severe threat from climate change. The World Wildlife Fund and British Antarctic Survey have put together a five-year initiative where the public can look through thousands of satellite images to spot walruses as part of the first-ever effort to carry out a full population census for these animals.