ᴄᴏᴜʟᴅ Sᴘᴀᴄᴇ ᴀʟɪᴇɴs ᴏɴ ʜᴇғᴛʏ Sᴜᴘᴇʀ-ᴇᴀʀᴛʜs ʙᴇ ᴛʀᴀᴘᴘᴇᴅ ʙʏ ᴛʜᴇɪʀ ᴏᴡɴ ɢʀᴀᴠɪᴛʏ?

Here’s a problem that probably hasn’t occurred to you: A lot of space a̳l̳i̳e̳n̳s might have difficulty becoming a spacefaring species. MiRead More…