Menú Close

Artículos sobre Astrophysics

Mostrando 1 - 20 de 198 artículos

Artist concept of Gravity Probe B orbiting the Earth to measure space-time, a four-dimensional description of the universe including height, width, length, and time. (NASA)

Gravitational distortion of time helps tell modified gravity apart from a dark force

The gravitational field can affect space and time: the stronger gravity is, the slower time moves. This prediction of General Relativity can be used to reveal hidden forces acting on dark matter.
Astronomers can estimate ages for stars outside the Solar System, but not planets. Corbis Historical via Getty Images

How do astronomers know the age of the planets and stars?

Measuring the ages of planets and stars is tricky. An observational astrophysicist describes the subtle clues that provide good estimates for how old different space objects are.
The inside of the LZ outer detector. The LZ is a super sensitive machine that may one day detect a dark matter particle. Matt Kapust, SURF

Researchers dig deep underground in hopes of finally observing dark matter

To detect dark matter, you need to build an ultra-sensitive detector and put it somewhere ultra-quiet. For one physics collaboration, that place is almost a mile under Lead, S.D.
New research shows that the destructive merging of a star and a planet expels huge amounts of gas, as shown in this artist’s impression. K. Miller/R. Hurt (Caltech/IPAC)

Astronomers just saw a star eat a planet – an astrophysicist on the team explains the first-of-its-kind discovery

Stars begin to expand when they run out of fuel and can become thousands of times larger, consuming any planets in the way. For the first time, astronomers have witnessed one such event.
The central black hole of Messier 87, a massive galaxy in the Virgo cluster. Event Horizon Telescope Collaboration/ESO

A unique collaboration using a virtual Earth-sized telescope shows how science is changing in the 21st century

Beyond just looking at black holes, the next-generation Event Horizon Telescope collaboration is the first to bring together perspectives from across the sciences and humanities.

Principales colaboradores