extremely rare discovery of a system of six planets in resonance

extremely rare discovery of a system of six planets in resonance

By Tristan Vey Published yesterday at 5 p.m, Update yesterday at 6:38 pm View of the planetary system HD 110067 with six planets in resonance with each other. CC BY-NC-SA 4.0, Thibaut Roger/NCCR PlanetS These are a priori hot mini-Neptunes, in a stable configuration for billions of years. A very interesting case study for studying … Read more

Discovery of the first protoplanetary disk in another galaxy!

Discovery of the first protoplanetary disk in another galaxy!

Are the laws of astrophysics universal? To find out, researchers track the differences between the stars and the astrophysical processes that can be observed in the Milky Way and those in other galaxies. Latest discovery: the first accretion disk around a protostar in the Large Magellanic Cloud, a small barred spiral galaxy not far from … Read more

Earth was hit by cosmic particles of unknown origin that were tens of millions of times more energetic than at the LHC

Earth was hit by cosmic particles of unknown origin that were tens of millions of times more energetic than at the LHC

It is known that cosmic rays were discovered in 1912 by Austrian physicist Victor Franz Hess (1883 – 1964), which earned him half of the 1936 Nobel Prize in Physics, while the other half was awarded to Carl Anderson for his discovery of the positron. . Cosmic rays are subatomic particles composed mainly of protons, … Read more

Astronomers are encountering a surprising menage a trois among massive stars

Astronomers are encountering a surprising menage a trois among massive stars

British researchers from the University of Leeds recently published a study that could revolutionize the way astronomers understand stellar evolution. They believe they have found evidence that a certain category of stars very often exists in the form of ternary systems, that is, trios of stars orbiting a common center of mass. The stars focused … Read more

This strange comet approaching Earth continues to transform before the eyes of astronomers

This strange comet approaching Earth continues to transform before the eyes of astronomers

Since this summer the astronomersastronomers from all over the world have fun observing the evolution of Comet 12P/Pons-Brooks along its path to our Sun. For the fourth time, from July, the BrightnessBrightness The comet suddenly brightened, shining at magnitude 9 in the constellation Hercules. According to astronomers, this sudden increase in brightness is a sign … Read more

The James-Webb telescope reveals a ‘cotton candy’ exoplanet with ‘sand showers’ that challenges astronomers

The James-Webb telescope reveals a ‘cotton candy’ exoplanet with ‘sand showers’ that challenges astronomers

Slowly but surely, month by month, the James Webb Space Telescope provides more and more evidence of its ability to provide details about the composition of atmospheresatmospheres exoplanets. The ultimate goal, of course, is to find convincing biosignatures in the atmosphere of an exo-Earth, but that may require patience for decades. This does not mean … Read more

Why is recyclable plastic still recycled so little?

Why is recyclable plastic still recycled so little?

DECRYPTION – Of the 3 million tons of plastic waste thrown away in France every year, almost 70% is not recycled. However, much of it is recyclable. From 18 to 25 November, the European Waste Reduction Week focuses on packaging. On this occasion, the Figaro returns to this astonishing figure: every year in France – … Read more

Hubble confirms the presence of an Earth-sized exoplanet just 22 light-years away!

Hubble confirms the presence of an Earth-sized exoplanet just 22 light-years away!

The planetary transit method is one of the most important indirect methods of detecting an exoplanet. It had revealed the existence of the exoplanet LTT 1445Ac just 22 light-years from the Sun, but doubts remained about its radius. The Hubble Telescope has just confirmed that its size is comparable to that of Earth, making it … Read more

It is said that the black hole in the Milky Way rotates at almost the speed of light

It is said that the black hole in the Milky Way rotates at almost the speed of light

Stars rotate on their axis and this must also be the case for stellar black holes created by the gravitational collapse of these stars. The same is thought to be true of supermassive black holes at the heart of galaxies, and the theory of quasar radiation is crucially linked to the fact that these black … Read more

the discovery of an ancient galaxy redefines modern astronomy!

the discovery of an ancient galaxy redefines modern astronomy!

An artificial intelligence-generated image of the Milky Way-like galaxy CEERS-2112 discovered by JWST. Credit: DALL-E3/Bing Roberta Duarte Meteor Brazil 16/11/2023 09:00 8 minutes The Milky Way is a barred spiral galaxy. This means it has spiral arms and a bar in the middle. Both the bar and the arms are composite of stars, gas and … Read more