Curiosity Sniffs a Spike in Methane. Could it be a Sign of Life?

Curiosity Sniffs a Spike in Methane. Could it be a Sign of Life?

Since it landed on Mars in 2012, one of the main scientific objectives of the Curiosity rover has been finding evidence of past (or even present) life on the Red Planet. In 2014, the rover may have accomplished this very thing when it detected a tenfold increase in atmospheric methane in its vicinity and found traces of complex organic molecules in drill samples while poking around in the Gale Crater.

We probed Santorini’s volcano with sound to learn what’s going on beneath the surface

We probed Santorini’s volcano with sound to learn what’s going on beneath the surface

The island of Santorini in the Mediterranean has attracted people for millennia. Today, it feels magical to watch the sun set from cliffs over the deep bay, surrounded by cobalt blue churches and whitewashed houses. This mystical place attracts about 2 million tourists per year, making it one of the top destinations in Greece.

Majority of people return lost wallets – here’s the psychology and which countries are the most honest

Majority of people return lost wallets – here’s the psychology and which countries are the most honest

Honesty is one of the traits we value most in others. We often assume it is a rather rare quality, making it important for us to find out who we can actually trust in this selfish world. But according to new research, there’s no need to be so cynical – it turns out most people in the world are honourable enough to return a lost wallet, especially if it contains a lot of cash.

Two Earth-Like Worlds Found Orbiting a Red Dwarf Only 12.5 Light-Years Away!

In the past few decades, there has been an explosion in the number of planets discovered beyond our Solar System. With over 4,000 confirmed exoplanets to date, the process has gradually shifted from discovery towards characterization. This consists of using refined techniques to determine just how likely a planet is to be habitable.

Black plastic can’t be recycled – but we’ve just found a way to use the carbon in renewable energy

Black plastic can’t be recycled – but we’ve just found a way to use the carbon in renewable energy

The big problem with plastics is that though they last for a very long time, most are thrown away after only one use. Since plastics were invented in the 1950s, about 8,300 million metric tonnes (Mt) have been made, but over half (4,900 Mt) is already in landfill or has been lost to the environment. In 2010 alone, an estimated 4.8 to 12.7 Mt went into the oceans.

Earth has a Water Cycle. Mars has a Dust Cycle

Earth has a Water Cycle. Mars has a Dust Cycle

To say there are some myths circulating about Martian dust storms would be an understatement. Mars is known for its globe-encircling dust storms, the likes of which are seen nowhere else. Science fiction writers and Hollywood movies often make the dust storms out to be more dangerous than they really are. In “The Martian,” a powerful dust storm destroys equipment, strands Matt Damon on Mars, and forces him into a brutal struggle for survival.

How NASA's Spitzer Has Stayed Alive for So Long

How NASA's Spitzer Has Stayed Alive for So Long

After nearly 16 years of exploring the cosmos in infrared light, NASA's Spitzer Space Telescope will be switched off permanently on Jan. 30, 2020. By then, the spacecraft will have operated for more than 11 years beyond its prime mission, thanks to the Spitzer engineering team's ability to address unique challenges as the telescope slips farther and farther from Earth.

Inflatable Heat Shield Could Deliver Heavy Payloads to Worlds With a Thick Atmosphere

One of the greater challenges of sending payloads to Mars is having to contend with the planet’s atmosphere. While incredibly thin compared to Earth’s (with roughly half of 1% of Earth’s air pressure), the resulting air friction is still an issue for spacecraft looking to land there. And looking to the future, NASA hopes to be able to land heavier payloads on Mars as well as other planets – some of which may have atmospheres as dense as Earth.