These 2016 stories could be really big — if they’re true

Some scientific findings this year made a big splash but require more evidence

illustration of Planet 9

BIG IF TRUE  If it does exist, Planet 9 probably resides somewhere between 500 and 600 times Earth’s distance from the sun. Its discovery would be big news in science.

R. Hurt/IPAC, Caltech

These findings would have rocked the scientific world, if only the evidence had been more convincing.