Casey Lenski

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We'll Find Alien Life in This Lifetime, Scientists Tell Congress

Humans have long wondered whether we are alone in the universe. According to scientists working with the Search for Extraterrestrial Intelligence …

Dark Stars - Astronomers Investigate if Dark Matter Influenced the Development of Stars

Dark stars, entirely speculative entities for now, are hypothesized to form in the early cosmos when dark matter condenses and associated particle …

Aliens? Yes Please. UFOs? No Thanks

The Search for Extraterrestrial Intelligence, or SETI, may becoming more mainstream, as evidenced by this week’s House Science and Technology …

Paranormal

Safety First? It's Time for a Fresh Look at the Risks of Spaceflight

In the wake of all the jabs about trade sanctions, trampoline launches and a space station pullout, America's dependence on Russian space hardware is suddenly looking like a bad idea. But Rand Simberg, a self-described recovering aerospace engineer, says policymakers should have seen it coming.<p>"I …

Possible 'Nearby' Gamma Ray Burst Alert Was False Alarm

Following the late night news yesterday of a possible gamma ray burst in our next door neighboring galaxy Andromeda, it was an “Oh darn!” moment this …

Supermassive Black Hole At The Centre Of The Galaxy May Be A Wormhole In Disguise, Say Astronomers

And if it is a wormhole, this is how it would look…<p>One of the most extraordinary objects in the Milky Way galaxy is Sagittarius A* (pronounced …

Giant telescope tackles orbit and size of exoplanet

Using one of the world's largest telescopes, astronomers have tracked the orbit of a planet at least four times the size of Jupiter. The scientists …

Why stars twinkle, but planets don’t

Stars and planets both shine steadily, when seen from outer space. But – from Earth – stars twinkle while planets (usually) don’t. Why?<p>Stars twinkle, …

Astronomy

Global "Selfie" to Be Beamed to Outer Space

The crowd-sourced message will be uploaded to New Horizons spacecraft.<p>If you had the chance to send a message to aliens in outer space, what would you say? What would you tell them about life on Earth? How would you explain who we are?<p>These are not hypothetical questions.<p>This summer, you will get …

Nasa would speak out if private manned missions to Mars too risky

It’s like an interplanetary re-telling of the famous tortoise and hare story. Nasa and the world’s other space agencies are pursuing a careful, long-winded programme aimed at landing astronauts on Mars by 2035. Private organisations, such as the not-for-profit Mars One, are claiming that they can …

Ask Anything: What Would People Eat In A Permanent Space Colony?

Once settled on another planet, colonists would likely start with hydroponic farming, using small-stature or dwarf cultivars that can be tightly packed together. It would make the most sense to plant fast-cycle salad crops first, says Jean Hunter, a professor at Cornell who studies food-processing …

Space Exploration

How Soon Can We Check in to a Space Hotel?

Bigelow Aerospace vice president Jay Ingham tells PM how inflatable space habitats will transform low Earth orbit, starting with an inflatable space station module called BEAM that is slated to dock with the ISS in 2015.<p>NASA tried making inflatable space habitats during the 1990s with its TransHab …

Terraforming Mars

<i>From Jenny Russell</i><p>I fear that Mike Martinez’s idea of diverting comets to Mars in order to speed up the process of terraforming is a complete …