In a recent interview with Russian News Service TASS, cosmonaut Anton Shkaplerov discussed the presence of microbes that were found on the outside of the hull of the International Space Station, that were not present after the launch of the ISS’s modules. According to Shkaplerov, "it turns out that somehow these swabs reveal bacteria that were absent during the launch of the ISS module."

"That is, they have come from outer space and settled along the external surface."

Astronomers have discovered what is now the smallest known star in the galaxy, in a system roughly 600 light-years from Earth. Part of a trinary star system, the smaller of the pair, EBLM J0555-57Ab, is estimated to only be 8 percent of the mass of our own Sun, in a compact package no bigger than Saturn.

This itty-bitty sun may represent the smallest size that a star can be: to sustain the hydrogen fusion process that provides a star’s energy, the gases within must be brought to a high pressure and temperature, meaning that there needs to be enough mass present in the star to provide these conditions.

What if we’re looking for alien life in all the wrong places? In response to the current search for alien life in sources beyond Earth, Penn State astronomer Jason Wright has published a paper titled "Prior Indigenous Technological Species", putting forth the idea that there’s the possibility that we mightn’t have to look too far afield to find traces of technologically-advanced alien civilizations, as there may very well have been some that evolved right here on our own planet, in Earth’s distant past.