Marcelo Chacon

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What Salamanders Could Teach Scientists About Growing Human Limbs

Regeneration, salamander-style<p>In an attempt to recreate the plot of multiple recent superhero movies, a team of Australian scientists is looking into the regenerative properties of salamanders--and into how humans can pull off the same trick.<p>Salamanders, specifically the axolotl, are vertebrates …

Planetary trio has ended. Where do the planets go next?

Jupiter, Venus and Mercury are no longer within a 5-degree circle. But you can still see all three in the west after sunset for a few more days.<p>The …

Who invented clothes? A Palaeolithic archaeologist answers

"Who invented clothes?" It's one of those brilliant questions that children ask, before they learn that the big things we wonder about rarely have …

The Little Metronome That Wouldn't

If this wasn't a science page, if this happened 3,000 years ago in, say, a Middle Eastern desert, I would call it a Miracle. But it's not. It's just a plain, ordinary moment of "wow!"<p>First, the beginner's version. A man takes a bunch of metronomes, sets them ticking in different ways, then — <i>and</i> …

The first GIFs? Prehistoric rock carvings become 'animated' under sunlight

Prehistoric human artwork is simple but breathtaking, as anyone who has seen some up close or in movies such as Werner Herzog's 2011 documentary <i>Cave of Forgotten Dreams</i> can attest. But now archaeologists say that there is more to it than meets the eye: a group of rock carvings in the Italian Alps …

Macrophages let salamanders replace limbs - Futurity

MONASH U. (AUS) — Salamanders can regrow limbs thanks to their immune systems, which could …

Nasa's Curiosity Mars rover drills second rock sample

<b>Nasa's Curiosity rover on the Red Planet has drilled a second rock sample to deliver to its onboard laboratories.</b><p>The powder was taken from the interior of a target dubbed "Cumberland" by the science team.<p>This rock is about 2.75m from the site where the rover acquired its first drill sample in …

Mars Rover