What's up in

Abstractions

Kuiper belt objects, planet nine
Abstractions blog

Planet Nine Is Put on Trial in Absentia

Breathless media coverage notwithstanding, the cases for and against a hypothetical Planet Nine in the outskirts of the solar system remain inconclusive.

Dwarf irregular galaxy
Abstractions blog

Researchers Check Space-Time to See if It’s Made of Quantum Bits

The newly developed theory of emergent gravity, proposed as an alternative to dark matter, struggles in one of its first trials.

Andromeda galaxy
Abstractions blog

How Superfluid Dark Matter Mimics an Old Idea About Gravity

Does the force of gravity change at large scales? Perhaps not, but a new theory of dark matter shows why that could appear to be the case.

Sylvia Earle in one-person submersible DeepWorker
Abstractions blog

Sylvia Earle Is Not Done Exploring

The legendary marine biologist discusses why she’s excited about the coming era of ocean science, the shortsightedness of maritime exploitation and diving in the Arctic in her 80s.

Paul Erdős
Abstractions blog

Cash for Math: The Erdős Prizes Live On

Paul Erdős placed small bounties on hundreds of unsolved math problems. Over the past 20 years, only a handful have been claimed.

Black hole merger
Abstractions blog

Latest Black Hole Collision Comes With a Twist

The Advanced Laser Interferometer Gravitational-Wave Observatory’s third detection further compounds the mystery of why black holes collide.

Tidal pool with ocean life
Abstractions blog

Awash in Sea of Data, Ecologists Turn to Open Access Tools

To assess the ocean’s health, ecology’s “rugged individualists” learned to get with the big data program.

Juggler
Abstractions blog

The Mathematics of Juggling

Juggling has advanced enormously in recent decades, thanks in part to the mathematical study of possible patterns.

Abstractions blog

Why Quantum Computers Might Not Break Cryptography

A new paper claims that a common digital security system could be tweaked to withstand attacks even from a powerful quantum computer.