Mars trips may involve less radiation exposure than previously thought:
There's no question that the first human mission to Mars will be extremely dangerous. Some studies have suggested that the radiation levels would exceed the maximum career dose for a given astronaut, greatly increasing the risk of cancer and other illnesses. It might not be quite so bad as it sounds, though. Newly presented ESA ExoMars orbiter data indicates that astronauts would receive "at least" 60 percent of their maximum recommended career radiation exposure on a round trip to Mars that takes six months both ways. That's still several times what ISS crew members receive, but it's relatively gentle compared to what some had feared.
(Score: 2) by Immerman on Friday September 21 2018, @12:23AM (1 child)
Theory of Relativity
Quantum Mechanical Theory
the two most thoroughly tested and broadly accepeted models ever conceived
They also use theory a lot in less well established contexts, but probably shouldn't when laymen can hear them. Or should come up with a better term for "theories most everyone believes".
(Score: 0) by Anonymous Coward on Friday September 21 2018, @12:54AM
I don't know about QM, but general relativity predicts the wrong thing all the time. They came up with the ad hoc theory of "dark matter" and "dark energy" to save it, and now 90% (or whatever) of the universe is made of stuff that can only be "detected" as deviations from the predictions of GR. So, yea its a perfect example of a degenerating theory.