In October 2017, astronomers detected an interstellar object travelling through our solar system for the first time. Theories abounded as to the nature of the oblong object, named ‘Oumuamua, which accelerated as it made its transit. Now, a team of researchers suggests a straightforward explanation: The interstellar interloper was a comet that was releasing hydrogen…
Every April for the next several hundred years, a small asteroid is visible to a select few telescopes on Earth. That asteroid is Kamo’oalewa, a space rock that a team of astronomers says is likely an ancient fragment of our Moon.