Gianluca Masi from the Virtual Telescope Project captured imagery of comet C/2022 E3 (ZTF) on Feb. 7 and Jan. 29, 2023. The comet's closest approach to Earth was on February 2 at 26.4 million miles ...

"Interstellar comets enable low-cost directed panspermia that is potentially wide in scope in terms of the number of possible probes and range ultimately covered," they write. A 2021 study predicted ...