The Earth’s magnetosphere is home to the plasma waves being studied by Yuri Shprits and colleagues. Credit: NASA In the 1960s, NASA launched six satellites to study Earth’s atmosphere, magnetosphere and the space between Earth and the moon. Using observations from those satellites, Christopher Russell, a UCLA graduate student at the time, detected mysterious plasma

Space is not empty, nor is it silent. The region around Earth is filled with magnetic field lines and trapped energetic particles, zooming about in a high-speed dance around the planet (shown here in an illustration). Credit: NASA’s Goddard Space Flight Center/Brian Monroe Space is not empty, nor is it silent. While technically a vacuum,

This artist’s impression shows one of the three newly discovered planets in the star cluster Messier 67. In this cluster the stars are all about the same age and composition as the Sun. This makes it a perfect laboratory to study how many planets form in such a crowded environment. Very few planets in clusters

Simulation of the interior of a solar-type star. Credit: University of Montréal – DAp/CEA – AIM The Sun is a solar-type star, a new study claims — resolving an ongoing controversy about whether the star at the center of our Solar System exhibits the same cyclic behavior as other nearby, solar-type stars. The results also

Smallest star ever discovered. Very small and dim stars are the best possible candidates for detecting Earth-sized planets which can have liquid water on their surfaces. Credit: Amanda Smith The smallest star yet measured has been discovered by a team of astronomers led by the University of Cambridge. With a size just a sliver larger

his enhanced-color image of Jupiter’s Great Red Spot was created by citizen scientist Jason Major using data from the JunoCam imager on NASA’s Juno spacecraft. The image was taken on July 10, 2017 at 07:10 p.m. PDT (10:10 p.m. EDT), as the Juno spacecraft performed its 7th close flyby of Jupiter. At the time the

Will another planet be added to the list of Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune in our Solar System? Credit: NASA Last year, the existence of an unknown planet in our Solar system was announced. However, this hypothesis was subsequently called into question as biases in the observational data were detected. Now

Artist’s impression of a T-type brown dwarf. Credit: NASA / JPL-Caltech Our galaxy could have 100 billion brown dwarfs or more, according to work by an international team of astronomers, led by Koraljka Muzic from the University of Lisbon and Aleks Scholz from the University of St Andrews. On Thursday 6 July Scholz will present

A hot Jupiter at various phases of its orbit. The sizes of the star and planet and the separations between them are to scale for a typical hot Jupiter. The amount of reflected starlight that is observed depends on the planet’s position within its orbit and the inclination of the orbit with respect to the

Sketch of the nebula formed by a wind of electrons and positrons coming from the pulsar, and the interaction with interstellar gas. Geminga crossed the plane of the Galaxy (off to the bottom right) around 100,000 years ago. It is thought that the supernova explosion was not symmetric, causing the remnant to recoil at around

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