Recent content by Cosmo47

Not one mention of neither China nor Russia signing the Artemis Accords -- which therefore does not address the elephant in the room (or the elephant on the Moon): What happens when one country claims a piece of the Moon as its own, over the objections of other countries? What happens when more...

I use the Exoplanet phone app database. Can you help me find KOI 5715.01 and KOI 5554.01 in there? I did a search and came up empty. Many thanks.

How far does the 'mirror' universe go in terms of reflecting this universe? Is matter organized the same in both universes? For example, would the CMB for each universe be a mirror image of the one for the other universe? Taking it even further, did the same galaxies, stars and planets form in...

They came to the "5 billion years to evolve intelligent life" number by looking at how long it took humans to become 'intelligent' after the formation of the Earth. Answer: 4.5 billion years (as microbial life appeared soon after Earth became Earth). I found this number to be sort of 'squishy'...

For Horizon's next astrophysical object to photograph, I vote for Planet IX.

Concur about the possibility of intelligent life having risen multiple times on Earth without our knowledge of it. Why not a race more intelligent than us who existed shortly before one of Earth's mass extinction events, saw it coming, so packed up and left Earth, intentionally destroying...

I am reminded of a Star Trek Next Generation episode where miners were working on a 'lifeless' planet but suffered malfunctions in their technology. We found out it was caused by 'life' whose home on the planet was a few feet beneath the surface in a layer of salinity that existed across much of...

We've already seen season 2. Why does this article say it won't appear until October 2020?