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Currently Browsing: Results for Tag "astronomy"

New data from Cassini reveals Titan has canyons filled with liquid methane

New data from Cassini reveals Titan has canyons filled with liquid methane It’s hard to describe Titan without getting a little breathless — the place is a little like Earth’s “upside down.As hydrocarbon rain turns into rivers and carve through the surface, canyons proportionate to our Grand Canyon run with flowing methane.

The History of How We Discovered All the Planets in the Solar System

The History of How We Discovered All the Planets in the Solar System Here are the stories of how astronomers living hundreds of years ago discovered each planet in our solar system.The second planet in the solar system, Venus is the brightest of the planets as observed Earth.

New evidence strengthens the case for ‘Planet 9’ in the outer solar system

New evidence strengthens the case for ‘Planet 9’ in the outer solar system In fact, we aren’t 100% sure we’ve found all the planets in our own solar system.In a new study published in The Astronomical Journal, scientists present compelling evidence for the existence of a large planet orbiting at the edge of the solar system.

Team behind ‘alien’ signal admits it likely originated here on Earth

Team behind ‘alien’ signal admits it likely originated here on Earth Some astronomers predicted it, and now it’s been basically confirmed: the international team of scientists that reported a possibly alien signal now believes that it is likely originated right here on Earth.7cm wavelength range, and calculations based on the assumed astronomical origin showed that such a signal would have to be incredibly powerful to reach Earth at the observed intensity.

NASA delays Orion crew module to 2015, three years after original target

NASA delays Orion crew module to 2015, three years after original target The source of the problem seems to be in coordination with the corporate partners that are the program’s target, most notably Boeing and SpaceX.Note that this report was produced before Thursday’s explosion of a SpaceX Falcon 9 at Cape Canaveral.

Gaia, ESA’s revolutionary stellar cartographer, set to transform astronomy

Gaia, ESA’s revolutionary stellar cartographer, set to transform astronomy On September 14, the team will release its first galaxy map, comprising more than two million stars and other objects, and with it a full 19 papers by Gaia astronomers.To deliver this information, Gaia is using one of the oldest techniques in astronomy: parallax, or the extent to which an object seems to move as your position changes.

Astronomers discover a ‘starving’ supermassive black hole at the center of a galaxy

Astronomers discover a ‘starving’ supermassive black hole at the center of a galaxy What happens when a black hole falls on hard times?An international team of astronomers have found a black hole that’s rapidly getting dimmer, and they think it’s starving.

Astronomers discover true nature of ‘giant space blob’

Astronomers discover true nature of ‘giant space blob’ We’ve been staring at the first such blob, called Lyman-Alpha blob 1 or LAB-1 for short, since we found it in 2000.The birth of galaxies is not a peaceful process, and these young galaxies could be bombarding the star nurseries with high-energy matter, driving star formation.

Closest exoplanet Proxima b remains mysterious, in the absence of direct observation

Closest exoplanet Proxima b remains mysterious, in the absence of direct observation The best we can do right now is make some educated guesses about conditions on Proxima b.According to researchers at France’s CNRS, there’s at least a possibility that Proxima b has liquid oceans on the surface.

There may be 10 times more galaxies in the universe than we thought

There may be 10 times more galaxies in the universe than we thought But a new analysis of Hubble Telescope data indicates that astronomers might have vastly underestimated the scale of the universe.There may actually be 10 times more galaxies in the universe than we previously thought.

Planet nine might be pulling our solar system out of alignment

Planet nine might be pulling our solar system out of alignment Their observations indicate that planet nine could be causing a “wobble” in the solar system.While we can’t see planet nine, astronomers have detected a number of bizarre effects in the solar system that could be explained by the object.

Astronomers get a chance to watch a rare red nova in its opening strains

Astronomers get a chance to watch a rare red nova in its opening strains As you might suspect, a contact binary is an unstable state of affairs.When that finally happens, the cores of the two stars will merge and then explode as a luminous red nova.

Oxford scientists call into question the idea that the universe’s expansion is accelerating

Oxford scientists call into question the idea that the universe’s expansion is accelerating Type Ia supernovae are affectionately called “standard candles” in astronomy.When the Oxford team did their own analysis of the universe’s expansion scenarios, their best-case, most-certain outcome was much less confident that the universe is expanding at an accelerating rate.

Oxford scientists call into question the idea that the universe's expansion is accelerating

Oxford scientists call into question the idea that the universe's expansion is accelerating When the Oxford team did their own analysis of the universe’s expansion scenarios, their best-case, most-certain outcome was much less confident that the universe is expanding at an accelerating rate.Instead, the data “lends itself” to the conclusion that the rate of expansion is constant.

Nearby exoplanet Proxima b could be a habitable ocean world

Nearby exoplanet Proxima b could be a habitable ocean world That’s not the case with Proxima b, a small exoplanet that orbits the nearest star to our own, Proxima Centauri.Scientists haven’t been able to spot Proxima b transiting its star yet, but a new study of the Proxima Centauri system shows how Proxima b could be a habitable ocean planet.

NASA completes construction of the James Webb Space Telescope

NASA completes construction of the James Webb Space Telescope The James Webb Space Telescope (JWST) comes up a lot when we talk about the very boundaries of our understanding of the cosmos.For more than a quarter century, the Hubble Space Telescope has been our best window to the wider universe, but it can only do so much.

The 25 best Hubble Space Telescope images

The 25 best Hubble Space Telescope images The Hubble Space Telescope has been silently hovering above Earth for over 25 years, but it’s still returning spectacular images of the cosmos.Most of the famous Hubble images were taken with the Wide Field and Planetary Camera 2 (WFPC2), and the Wide Field Camera 3 (WFC3).

Chandra Observatory spies densest-ever concentration of black holes

Chandra Observatory spies densest-ever concentration of black holes The universe is a big place, and we know from targeted observations that there are a lot of black holes out there.The Chandra team has just released a new image from a long-term study of the sky that shows the densest concentration of black holes ever seen.

NASA tells astronomers to submit proposals for James Webb Telescope observations

NASA tells astronomers to submit proposals for James Webb Telescope observations Now that the telescope has been built and is undergoing final testing, NASA has turned its attention to the future — namely, what the Webb Telescope is going to do once it’s deployed.The space agency has asked astronomers to start submitting proposals for observations beginning in April 2019.

Hubble telescope to scout the Voyagers' paths through interstellar space

Hubble telescope to scout the Voyagers' paths through interstellar space Our Voyager spacecraft are boldly going where no man has gone before.Both Voyager spacecraft were launched in 1977, on missions to visit Jupiter, Saturn, Uranus and Neptune.