About That Giraffe and the Dying Zoo Worker: Your Questions, Answered

By now you've probably seen news articles showing a giraffe in a Dutch zoo sharing a tender moment with a terminally ill zoo worker. Do the claims that this giraffe was kissing its human friend goodbye hold up to scientific scrutiny? Let me break it down for you. » 3/23/14 8:34pm 3/23/14 8:34pm

Ask a paleontologist about the mystery behind this whale graveyard!

Over 5 million years ago, a mass stranding of whales created what is now a whale graveyard in modern day Chile. Just why those whales died was a mystery — until now. Nick Pyenson, the paleontologist who led the team that cracked the case, is here to answer your questions! » 2/27/14 10:30am 2/27/14 10:30am

Ask a volcanologist anything you want to know about volcanoes!

Volcanoes! Whether we're talking about Pompeii, why some volcanoes in Indonesia are erupting with blue lava, or the mechanics of supervolcanoes, they're totally fascinating. Today, we have a volcanologist in to answer your questions about volcanoes, eruptions, and their aftereffects. » 2/24/14 9:10am 2/24/14 9:10am

Ask an expert about robots, space, and space robots right now!

By now, you've probably seen RoboSimian — the four-limbed, ape-inspired robot built by the Jet Propulsion Lab — in action at least once (and if you haven't, seriously, check it out now). Today, we've got Brett Kennedy, who leads the RoboSimian team at JPL, here to answer all our questions about robots, space, and… » 1/15/14 10:41am 1/15/14 10:41am