Alien life
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Seth Shostak: We will find aliens in the next two decadesMeeting ET isn’t so far off, I can bet my coffee on it, says astronomer who has dedicated his career to seeking out life on other planets
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How to draw… an alien – in picturesDo you love drawing extraterrestrials? Eddie Pittman, author of graphic novel Red’s Planet, shows you how create a weird looking one!
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Hillary Clinton's UFO investigation plans unlikely to achieve liftoff, experts sayThe Democratic frontrunner has said she would look into alleged spottings as president – but there may not be much to investigate
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Big-wigged Sia admits she believes in aliens in James Corden's Carpool KaraokeThe Australian singer and songwriter appeared in the viral segment to discuss her craft, her face, and her fascination with extraterrestrials
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Ben Miller on the search for alien life - podcastWhy are we so fascinated by the idea that we aren’t alone in the universe?
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The Visit: An Alien Encounter review – preparing our planet for first contactDanish director Michael Madsen asks a parade of military, scientific and philosophical talking heads to reveal how we would treat an alien encounter
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The year of the outer solar system: how space exploration reached new heights in 2015Major Tim Peake became Britain’s first career astronaut to make it into orbit – but scientific advances and Pluto discoveries were even bigger news
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‘Alien megastructure’ star KIC 8462852 shows no sign of lifeSearches for signs of extraterrestrial intelligence have come up empty-handed, forcing astronomers to think the ‘alien megastructure’ may be a natural phenomenon
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Radiation superflares make Earth-like planet uninhabitable, research suggestsKepler 438b, hailed as most habitable planet beyond our solar system, is regularly blasted with enough radiation to strip away its atmosphere
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The awesome power of science fiction's alien megastructuresThe imaginary constructions of science fiction fill us with awe at their alien vastness. Which have you explored, and what was the most overwhelming?
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‘Alien megastructure’ could explain mysterious new Kepler resultsStrange signals from a distant star are defying natural explanation. There is a remote chance that they could be from an ‘alien megastructure’
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Welcome to Earth: a travel guide for aliensDean Burnett: If we have found advanced aliens, we should do our best to make them welcome with a handy travel guide for visiting Earth.
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How do I … prove there’s life on Mars?Awful as it is to have to admit, we’re more likely to find microbes than a Martian iguana or a mist of sentient atoms – and that’s only if we manage to analyse the evidence without contaminating it
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Mars find suggests our solar system is awash with lifeLetters: Water everywhere must mean life everywhere
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Edward Snowden: we may never spot space aliens thanks to encryptionAnd extraterrestrials may never notice us, either, if our technology is sufficiently sophisticated, whistleblower tells Neil deGrasse Tyson
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Send aliens modern messages of Earth's equality and diversity, say scientistsThe UK entrants to a Breakthrough Initiative competition agree on one thing: any missive to extraterrestrials must be an up-to-date portrayal of humankind
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Neil deGrasse Tyson on Q&A calls scientific illiteracy a tragedy of our timesAstrophysicist joins scientists and mathematicians to discuss climate change and extraterrestrial life – and the booing of Adam Goodes – without acrimony
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Do aliens believe in God?Readers answer other readers’ questions on subjects ranging from trivial flights of fancy to profound scientific concepts
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Making contact with alien worlds could make us care more about our ownThe Breakthrough Message competition aims to build a digital portrait of life on Earth. Making it could increase respect for the preciousness of life
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’Allo ’allo ’allo, what’s going on here, then?Letters: The Metropolitan police accepts 14 second languages, none of them French
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$100m to find alien life? That's a start — but not nearly enoughYuri Milner’s massive investment is minuscule for a priceless addition to human knowledge, not to mention the strides in science and technology
Discovery of potentially Earth-like planet Proxima b raises hopes for life