SCIENCE
-
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 » -
Cosmic dust: “too much, too soon” no longer!
Even the youngest galaxies are often dust-rich, even with very low levels of heavy elements. Nearby dwarf galaxy Sextans A…
Read More » -
Ask Ethan: Why is there no such thing as antigravity?
In general relativity, matter and energy curve spacetime, which we experience as gravity. Why can’t there be an “antigravity” force?…
Read More » -
10 quantum myths that must die in the new year
The very word “quantum” makes people’s imaginations run wild. But chances are you’ve fallen for at least one of these…
Read More »