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Gravity


— Space

ESA's LISA Pathfinder experiment launches to explore Einstein’s General Theory of Relativity

ESA's LISA Pathfinder experiment has successfully launched atop a Vega rocket from the agency's spaceport in Kourou, French Guiana, and completed initial maneuvers required to place the probe in a low, stable orbit. The experiment will seek to observe tiny ripples in space known as gravitational waves, which were first predicted by Albert Einstein in his General Theory of Relativity.

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— Space

Dark matter may not be completely dark at all

New studies by astronomers are slowly throwing some light on dark matter, the invisible and mysterious stuff that scientists believe makes up much of the universe. For the first time, astronomers believe they've observed the interactions of dark matter via a factor other than the force of gravity. Read More
— Space

NASA seeks to understand vision changes due to microgravity

Having evolved under the pressure of Earth's gravity, it isn't surprising that our bodies experience adverse physiological affects after long periods in low-Earth orbit. NASA hopes that a new experiment, the Fluid Shifts investigation, set to launch to the ISS later this year, will shed light on the causes of vision loss and deformation of the structure to the eye often suffered by astronauts over the course of a stay aboard the ISS. Read More
— Space

Astronomers see supernova explosion using galaxies as lenses

A team of astronomers led by the Australian National University (ANU) has discovered a lens of galactic proportions. Using the Hubble Space Telescope and the Keck Observatory in Hawaii, the scientists saw a supernova not once, but four times by using the gravity of a distant cluster of galaxies to act as a natural lens that magnified and quadrupled the image of the exploding star. Read More
— Space

LISA Pathfinder gravity probe moves to testing

A European Space Agency (ESA) mission aimed at testing new technologies for understanding the universe has left Britain for final testing before being launched into space. The LISA Pathfinder mission's propulsion and science modules left Airbus Defence and Space for Industrie Anlagen Betriebs Gesellschaft (IABG) in Germany for final tests before shipment to the ESA launch site in Kourou, French Guiana, where they will be shot into low-Earth orbit atop a Vega rocket. Read More
— Space

Research suggests dark matter plays a significant role in our planet's mass extinction cycle

A new study carried out by Professor Michael Rampino of New York University suggests that dark matter may have had a part to play in the periodic mass extinction events that are known to have taken place throughout Earth's history. It takes our planet roughly 250 million years to circle the Milky Way, and around every 30 million years the Sun's orbit takes us through what is known as the galactic disk. The galactic disk is where the majority of the mass in our galaxy resides, and alongside it a thin disk of dark matter. Read More
— Space

New Planck map begins to unlock the secrets of the early universe

ESA's Planck mission is yielding some surprising findings along with a beautiful new map of the Milky Way that breaks down some of the key elements of our galaxy. The telescope spent four years studying the cosmic microwave background radiation (CMB), a relic from the birth of the universe. The resulting data from this endeavor is now helping us refine how we measure matter, how we understand dark matter and generally just unraveling the secrets of the universe. Read More
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