Is time real or is it an illusion?
Light exists outside of time.
Dr. Michelle Thaller is an astronomer who studies binary stars and the life cycles of stars. She is Assistant Director of Science Communication at NASA. She went to college at Harvard University, completed a post-doctoral research fellowship at the California Institute of Technology (Caltech) in Pasadena, Calif. then started working for the Jet Propulsion Laboratory's (JPL) Spitzer Space Telescope. After a hugely successful mission, she moved on to NASA's Goddard Space Flight Center (GSFC), in the Washington D.C. area. In her off-hours often puts on about 30lbs of Elizabethan garb and performs intricate Renaissance dances. For more information, visit NASA.
- Time can change depending on how fast you're moving through space. Also, time can "flow" at different rates for different observers.
- Light doesn't experience time — it exists outside of time.
- We perceive space and time differently, but they may be woven together. For instance, they both balance each other out: If you are still, time goes by at a natural rate. However, if you move through space very fast, time begins to slow down.
American education: It’s colleges, not college students, that are failing
Who is to blame for the U.S.'s dismal college graduation rate? "Radical" educator Dennis Littky has a hunch.
- COVID-19 has magnified the challenges that underserved communities face with regard to higher education, such as widening social inequality and sky-high tuition.
- At College Unbound, where I am president, we get to know students individually to understand what motivates them, so they can build a curriculum based on goals they want to achieve.
- My teaching mantra: Everything is permitted during COVID-19. Everything is permitted during COVID-19. Everything is permitted during COVID-19.
STARTS 11 AM ET | The 'Great Midlife Edit': How to master your middle years
Did you know that shifting to a positive perspective on aging can add 7.5 years to your life? Or that there is a provable U-curve of happiness that shows people get happier after age 50?
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These countries are leading the transition to sustainable energy
Sweden tops the ranking for the third year in a row.
What does COVID-19 mean for the energy transition? While lockdowns have caused a temporary fall in CO2 emissions, the pandemic risks derailing recent progress in addressing the world's energy challenges.
The mystery of the Bermuda Triangle may finally be solved
Meteorologists propose a stunning new explanation for the mysterious events in the Bermuda Triangle.
One of life's great mysteries, the Bermuda Triangle might have finally found an explanation. This strange region, that lies in the North Atlantic Ocean between Bermuda, Miami and San Juan, Puerto Rico, has been the presumed cause of dozens and dozens of mind-boggling disappearances of ships and planes.
What does the red pill really show you?
Neo's superhuman powers were only inside of The Matrix. The outside world offered a different reality.
- The "red pill" came into prominence as a way to break free of mental slavery in the 1999 movie, "The Matrix."
- In a new essay, Julian Walker points out Neo's powers only worked inside of the simulation—reality is a different story.
- The red vs blue pill question is a pop culture phenomenon, often used in questionable circumstances.
