Share on Facebook (opens in a new window) Share on X (opens in a new window) Share on Reddit (opens in a new window) Share on Hacker News (opens in a new window) Share on Flipboard (opens in a new ...

WASHINGTON (AP) — The gaps and stringy fibers in these space rocks sure look like bacteria, and a NASA researcher has caused a stir with claims that they're fossils of alien life. But as NASA found 15 ...