Lifeboat Foundation

Astronomers at the University of Auckland claim that there are actually around 100 billion habitable, Earth-like planets in the Milky Way — significantly more than the previous estimate of around 17 billion. There are roughly 500 billion galaxies in the universe, meaning there is somewhere in the region of 50,000,000,000,000,000,000,000 (5×10 ²² ) habitable planets. I’ll leave you to do the math on whether one of those 50 sextillion planets has the right conditions for nurturing alien life or not.

The previous figure of 17 billion Earth-like planets in the Milky Way came from the Harvard-Smithsonian Center for Astrophysics in January, which analyzed data from the Kepler space observatory. Kepler essentially measures the dimming (apparent magnitude) of stars as planets transit in front of them — the more a star dims, the larger the planet. Through repeated observations we can work out the planet’s orbital period, from which we can usually derive the orbital distance and surface temperature. According to Phil Yock from the University of Auckland, Kepler’s technique generally finds “Earth-sized planets that are quite close to parent stars,” and are therefore “generally hotter than Earth [and not habitable].”

The University of Auckland’s technique, called gravitational microlensing, instead measures the number of Earth-size planets that orbit at twice the Sun-Earth distance. This results in a list of planets that are generally cooler than Earth — but by interpolating between this new list, and Kepler’s list, the Kiwi astronomers hope to generate a more accurate list of habitable, Earth-like planets. “We anticipate a number in the order of 100 billion,” says Yock.

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A paper published today in Astrobiology details a new strategy for seeking out intelligent life.

If the human race is to survive in the long-run, we will probably have to colonise other planets. Whether we make the Earth uninhabitable ourselves or it simply reaches the natural end of its ability to support life, one day we will have to look for a new home.

Hollywood films such as The Martian and Interstellar give us a glimpse of what may be in store for us. Mars is certainly the most habitable destination in our solar system, but there are thousands of exoplanets orbiting other stars that could be a replacement for our Earth. So what technology will we need to make this possible?

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Inside a nondescript building at the Goddard Space Flight Center in Greenbelt, Maryland, NASA engineers are assembling the most powerful space telescope ever created. Once completed, the James Webb Space Telescope will be the largest space observatory in the known universe, with 100 times the seeing power of its predecessor, the Hubble Space Telescope.

In October 2018, the Webb will be launched into deep space with an ambitious mission. “Sometimes as analytical astronomers we shy away from saying, ‘We’re searching for life,’” says the deputy project scientist Dr. Amber Straughn. “But, that’s what we’re doing.” Atlantic senior editor Ross Andersen speaks with the NASA team seeking to answer some of our most fundamental questions: Where did we come from? Are there other life-sustaining planets out there? Are we alone in the universe?

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What matters is why it was developed and how it is used.

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The James Webb Space Telescope will finally crack the mystery of Tabby’s Star. We think.

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It’s looking less likely that a swarm of comets or an “alien megastructure” can explain a faraway star’s strange dimming.

The star (nicknamed “Tabby’s Star,” after its discoverer, Tabetha Boyajian) made major headlines last October when Jason Wright, an astronomer at Pennsylvania State University, suggested that it could be surrounded by some type of alien megastructure. A more likely idea — one that’s far less exciting — is that the star is orbited by a swarm of comets. But scientists can’t be sure either way.

Now, Bradley Schaefer, an astronomer at Louisiana State University, has probed the star’s behavior over the past century by looking at old photographic plates. Not only does the star’s random dipping date back more than a century, but it also has been gradually dimming over that period — a second constraint that makes it even harder to explain. [13 Ways to Hunt Intelligent Alien Life].

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VIDEO: Was the Ancient Aliens guy right?

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It seems like every day, a video or image emerges that appears to show a UFO near the International Space Station. And it generally — OK, always — turns out not to be a UFO. It’s normally space debris, light reflections from the station windows, an antenna attached to the station, etc.

But wouldn’t it be interesting if someone actually launched a satellite into Earth orbit (illustrated above), with the specific mission of trying to detect and prove unknown objects are actually out there?

Continue reading “Warning Space Aliens: Earth’s UFO- Hunting Satellite Is Coming For You” »