Featured Space news

Gemini Images Galaxy That Is 99.99 Percent Dark Matter.

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The dark galaxy Dragonfly 44. The image on the left is a wide view of the galaxy taken with the Gemini North telescope using the Gemini Multi-Object Spectrograph (GMOS) as part of a Fast Turnaround program. The close-up on the right is from the same very deep image, revealing the large,…

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Scientists exit Hawaii dome after yearlong Mars simulation

Six scientists have completed a yearlong Mars simulation in Hawaii, where they lived in a dome in near isolation.  For the past year, the group has lived in the dome on a Mauna Loa mountain and could go outside only while wearing spacesuits.  

On Sunday, the simulation ended, and the scientists emerged.

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Cassini Gets New Views of Titan's Land of Lakes.

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With the sun now shining down over the north pole of Saturn’s moon Titan, a little luck with the weather, and trajectories that put the spacecraft into optimal viewing positions, NASA’s Cassini spacecraft has obtained new pictures of the liquid methane and ethane seas and lakes that…

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Robotic telescope finds three new super-Earths by neighbouring star.

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Robotic telescope that is scanning the sky every night at Lick Observatory in USA discovered three planets, supersized Earths, around a nearby star. These planets are seven to eight times the mass of Earth and orbit very close to their host star. Scientists hope that telescope will continue…

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Hiding in Plain Sight: Undergraduates Discover the Densest Galaxies Known.

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Two undergraduates at San José State University have discovered two galaxies that are the densest known. Similar to ordinary globular star clusters but a hundred to a thousand times brighter, the new systems have properties intermediate in size and luminosity between galaxies and star …

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Astronomers unveil a distant protogalaxy connected to the cosmic web.

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A team of astronomers led by Caltech has discovered a giant swirling disk of gas 10 billion light-years away—a galaxy-in-the-making that is actively being fed cool primordial gas tracing back to the Big Bang. Using the Caltech-designed and -built Cosmic Web Imager (CWI) at Palomar Observatory, t…

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Astronomers Discover First Mulitiple-image Gravitationally-lensed Supernova.

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How about four supernovae for the price of one? Using the Hubble Space Telescope, Dr. Patrick Kelly of the University of California-Berkeley along with the GLASS (Grism Lens Amplified Survey from Space) and Hubble Frontier Fields teams, discovered a remote supernova lensed into four copies of it…

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'Clocks' in tree-rings that could reset chronologies across the ancient world.

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Until now scholars have had only vague evidence for dating when events happened during the earliest periods of civilisation, with estimates being within hundreds of years. However, the unusually high levels of the radioactive isotope carbon-14 found in tree-rings laid down during the radiation…

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Andromeda and Milky Way Might Collide Sooner Than We Think.

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The merger of the Milky Way and Andromeda galaxy won’t happen for another 4 billion years, but the recent discovery of a massive halo of hot gas around Andromeda may mean our galaxies are already touching. University of Notre Dame astrophysicist Nicholas Lehner led a team of scientists using the …

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Hubble Finds Evidence of Galaxy Star Birth Regulated by Black-Hole Fountain.

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Astronomers have uncovered a unique process for how the universe’s largest elliptical galaxies continue making stars long after their peak years of star birth. NASA’s Hubble Space Telescope’s exquisite high resolution and ultraviolet-light sensitivity allowed the astronomers to see brilliant knot…

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How Stellar Death Can Lead To Twin Celestial Jets.

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Astronomers know that while large stars can end their lives as violently cataclysmic supernovae, smaller stars end up as planetary nebulae — colorful, glowing clouds of dust and gas. In recent decades these nebulae, once thought to be mostly spherical, have been observed to often emit powerful, b…

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Dark Energy Measured with Record-Breaking Map of 1.2 Million Galaxies.

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A team of hundreds of physicists and astronomers have announced results from the largest-ever, three-dimensional map of distant galaxies. The team constructed this map to make one of the most precise measurements yet of the dark energy currently driving the accelerated expansion of the…

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Perseid meteors to light up summer skies.

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The evening of Wednesday 12 August into the morning of Thursday 13 August sees the annual maximum of the Perseid meteor shower. This year, a new moon makes prospects for watching this natural firework display particularly good. A Perseid seen in August 2010 above the four enclosures of the…

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Astronomers Poised to Capture Image of Supermassive Milky Way Black Hole.

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Scientists have long suspected that supermassive black holes (SMBH) reside at the center of every large galaxy in our universe. These can be billions of times more massive than our sun, and are so powerful that activity at their boundaries can ripple throughout their host galaxies. Artist’s c…

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A change in thought on Earth's core formation.

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Violent collisions between the growing Earth and other objects in the solar system generated significant amounts of iron vapor, according to a new study by LLNL scientist Richard Kraus and colleagues. This artist’s illustration shows a planetary scale impact on the Moon. Illustration by W.K. H…

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Luxembourg Announces Plan to Mine Asteroids for Metals.

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During an interview back in April, 2015, Neil deGrasse Tyson had said that the world‘s first trillionaire is going to be the person to start exploiting asteroids for their metallic contents. Now, it seems, this might actually happen. Luxembourg takes a big step forward towards a true space i…

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Venus may have been habitable, NASA climate modeling suggests

Venus may have had a shallow liquid-water ocean and habitable surface temperatures for up to 2 billion years of its early history, according to computer modeling of the planet’s ancient climate by scientists at NASA’s Goddard Institute for Space Studies (GISS) in New York.

The findings, published this week in the journal Geophysical Research Letters, were obtained with a model similar to the type used to predict future climate change on Earth.

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