With the discovery of an eighth planet, the Kepler-90 system is the first to tie with our solar system in number of planets. Artist’s concept. Credit: NASA/Ames Research Center/Wendy Stenzel Our solar system now is tied for most number of planets around a single star, with the recent discovery of an eighth planet circling Kepler-90,

Our home Milky Way galaxy (MW, yellow) and our companion Andromeda galaxy (M31, red) are participating in a downward flow away from a vast underdense region called the Local Void and toward the Virgo Cluster, represented by the purple spherecircle. Most galaxies between us and the Virgo Cluster will eventually fall into the cluster but

A NASA-led team of scientists determined that WASP-18b, a ‘hot Jupiter’ located 325 light-years from Earth, has a stratosphere that’s loaded with carbon monoxide, or CO, but has no signs of water. Credit: NASA’s Goddard Space Flight Center A NASA-led team has found evidence that the oversized planet WASP-18b is wrapped in a smothering stratosphere

Artist impression of a pair of galaxies from the very early universe. Credit: NRAO/AUI/NSF; D. Berry Astronomers expect that the first galaxies, those that formed just a few hundred million years after the Big Bang, would share many similarities with some of the dwarf galaxies we see in the nearby universe today. These early agglomerations

Mars may have been enveloped in a thick, steamy atmosphere as the planet’s crust cooled and solidified. That steam bath could have created many of the clay mineral deposits that have long been attributed to water flow on or just beneath the surface. Credit: Courtesy of Kevin Cannon Planetary scientists from Brown University have proposed

The ESO 3.6-metre telescope at La Silla. Credit: Y. Beletsky (LCO)/ESO New research using data collected by the European Southern Observatory (ESO) has revealed that a little-known exoplanet called K2-18b could well be a scaled-up version of Earth. Just as exciting, the same researchers also discovered for the first time that the planet has a

This is an artist’s impression of TRAPPIST 1d (right) and its host star TRAPPIST 1 (left). The new research shows how planets like this could hide traces of life from astronomers’ observations. Credit: MPIA Graphics Department New simulations show that the search for life on other planets may well be more difficult than previously assumed,

The super-Earth exoplanet 55 Cancri e, depicted with its star in this artist’s concept, likely has an atmosphere thicker than Earth’s but with ingredients that could be similar to those of Earth’s atmosphere. Credit: NASA/JPL-Caltech Twice as big as Earth, the super-Earth 55 Cancri e was thought to have lava flows on its surface. The

Some of the coldest and darkest dust in space shines brightly in this infrared image from the Herschel Observatory. Credit: ESA/NASA/JPL-Caltech Life on our planet might have originated from biological particles brought to Earth in streams of space dust, a study suggests. Fast-moving flows of interplanetary dust that continually bombard our planet’s atmosphere could deliver

Image of starlight on exoplanet. Credit: Courtesy of NASA/JPL-Caltech. Is there life beyond Earth in the cosmos? Astronomers looking for signs have found that our Milky Way galaxy teems with exoplanets, some with conditions that could be right for extraterrestrial life. Such worlds orbit stars in so-called “habitable zones,” regions where planets could hold liquid

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