Comment on Bald eagles in Delaware: Tell us about your sightings

Tech startup develops solution to electrify semi-truck fleets: 'There's no modifications needed whatsoever to the diesel truck itself'

Scientists find slowest spinning 'radio neutron star' — it breaks all the dead-star rules

Yet another Yellowstone hiker decides it would be a good idea to pose for selfies with bison (it isn't)

Millions of cicadas are blanketing Lake Geneva. Here's what they look and sound like

What to know for this weekend’s Spirit of St. Louis Air Show

Twitter founder Jack Dorsey warns social media algorithms are draining people of their free will—and Elon Musk agrees with him