SCIENCE
-
Ask Ethan: How long can the longest-lived star shine?
This graphic compares a Sun-like star with a red dwarf, a typical brown dwarf, an ultra-cool brown dwarf, and a…
Read More » -
The most important quantum advance of the 21st century
A century ago, quantum physics overthrew our view of a deterministic Universe. A profound 21st century theorem closes the door…
Read More » -
Ask Ethan: How much damage could a cosmic ray do to a human?
At the upper limits of what’s energetically possible, cosmic rays still persist. What happens if a human gets hit by…
Read More » -
JWST finds nine category-defying objects. Have astronomers found their “platypus?”
Just like animals, galaxies often have bizarre, unusual, or even unique properties. But finding many, all at once, really does…
Read More » -
Ask Ethan: Where are all the blueshifted galaxies?
Even in an expanding Universe, we expect both redshifted and blueshifted galaxies. But nearly every one we see is redshifted.…
Read More » -
Remembering Gladys West: who used Einstein to create GPS
Two main contributors enabled our modern global positioning system (GPS): Albert Einstein and Gladys West. Here’s how she made it…
Read More » -
10 JWST images that reveal the Universe as never before
With unprecedented resolution, wavelength sensitivity, and light-gathering power, JWST reveals our cosmos like no other observatory ever. Continue reading on…
Read More » -
Ask Ethan: Why do gravitational lenses make crosses, not rings?
Gravitational lenses arise when foreground masses and background light sources properly align. Einstein rings are rare, but crosses abound. Continue…
Read More » -
The four paths forward for US scientists in 2026
US science is worth fighting for, but so are the science projects and scientists denied opportunities. Here are 4 paths…
Read More » -
Ask Ethan: What does “gravitationally bound” mean in the expanding Universe?
When objects are gravitationally bound, they cannot escape from one another’s influence. How does that work within the expanding Universe?…
Read More »