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Currently Browsing: Results for Tag "astronomy"

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.

What is the Fermi Paradox?

What is the Fermi Paradox? The so-called Fermi Paradox comes up whenever we talk about the search for life outside our solar system, but what does the Fermi Paradox say about our place in the universe?It includes factors for the number of stars, the probability of habitable planet formation, the development of intelligent life, and so on.

Astronomers may have figured out why alien planets lack exomoons

Astronomers may have figured out why alien planets lack exomoons Astronomers have found a great many exoplanets out there among the stars, but one thing they have not found is exomoons.There’s no evidence of moons orbiting any of the planets we’ve found orbiting other stars, and it’s not clear why.

Asteroid discovered hours before it passes between Earth and moon

Asteroid discovered hours before it passes between Earth and moon While you were sleeping last night, an asteroid passed close to Earth—very close.That’s closer than the orbit of the moon, which is 238,000 miles away.

Scientists want you to help them find planets in this database of stars

Scientists want you to help them find planets in this database of stars So now, researchers are hoping that members of the public will use their free time to comb through and find hints of planets circling those alien suns.By checking out these measurements, scientists can actually learn more about how a star wobbles in its orbit.

How far they'll go: 'Moana' shows the power of Polynesian celestial navigation

How far they'll go: 'Moana' shows the power of Polynesian celestial navigation Moana touches on Polynesian voyaging, showing the eponymous main character using traditional celestial techniques to navigate across the sea.The film accomplished this reasonably well, especially in respect to celestial navigation, despite the producers facing criticism for cultural appropriation and commodification.

Scientists observe first planet-induced stellar pulsations

Scientists observe first planet-induced stellar pulsations But researchers now claim to have found the first example of stellar pulsations caused by an exoplanet.The star HAT-P-2 is emitting visible pulses that seem to be a result of a particularly large exoplanet in a highly eccentric orbit.

7 planets orbiting a star 39 light-years away could play host to alien life

7 planets orbiting a star 39 light-years away could play host to alien life Scientists have discovered that at least seven Earth-sized worlds circle the star TRAPPIST-1, a ultracool dwarf star only about 40 light-years from Earth.Just like Jupiter's moons, the planets orbiting TRAPPIST-1 all interact with one another, meaning that their orbits are influenced by one another.

NASA announces discovery of seven Earth-like exoplanets in a single solar system

NASA announces discovery of seven Earth-like exoplanets in a single solar system NASA has announced the discovery of an amazing planetary system in orbit of a nearby star consisting of seven Earth-like planets in the habitable zone.This was exciting enough to warrant a quick follow up by the Spitzer Space Telescope — TRAPPIST-1’s small size and low temperature was ideal for study with Spitzer’s infrared instruments.

Ripples in space and time carry the future of space science

Ripples in space and time carry the future of space science Billions of years ago, two black holes merged in a violent explosion that rippled the fabric of our universe.Those cosmic ripples — known as gravitational waves — produced by this collision spread far and wide in all directions, carrying with them information about the black holes that brought them into being.

There might be a real-life Tatooine in this distant star system

There might be a real-life Tatooine in this distant star system For the first time, scientists found evidence of a rocky planetary system surrounding a double sun.The star system, which is located about 1,000 light-years from Earth and named SDSS 1557, is composed of a white dwarf star and a brown dwarf — an object too small to be considered a full-fledged star, but too large to be a planet.

NASA gives out data about TRAPPIST-1 and its planets for free online

NASA gives out data about TRAPPIST-1 and its planets for free online Now, NASA is making all of that data freely available online for professional and amateur astronomers.Those dips might be the signals of planets passing between their star and Earth, allowing researchers to learn more about those worlds.

Pocket-sized starshooting camera will ship with a bunch of new lenses

Pocket-sized starshooting camera will ship with a bunch of new lenses That little pocket camera made to shoot the night sky is nearly ready.Photography enthusiasts who want to fit their own lenses on the body will be able to with a C-mount adapter, as well.

Mysterious fast radio bursts might come from alien solar sail spacecraft

Mysterious fast radio bursts might come from alien solar sail spacecraft Astronomers have been puzzling over fast radio bursts (FRB) for the last decade, but there’s not yet any good explanation of these high-energy radio blips.Now that fast radio bursts have defied explanation for this long, scientists are starting to wonder aloud if these extremely high-power emissions could be artificial.

Gorgeous video takes you on a trip above Mars

Gorgeous video takes you on a trip above Mars At the moment, NASA and other space agencies are operating satellites in orbit around Mars.A beautiful new video making use of a high-resolution camera orbiting Mars aboard a NASA spacecraft shows you just that.