Looking for life in all the wrong places

(Phys.org) —Scientists have long focused their search for extraterrestrial life on Earth-like planets – but that may be a mistake, according to a McMaster researcher.

Under the bright lights of an aging sun

Life as we know it on Earth is linked to our star, the Sun, which provides our planet with just the right amount of heat and energy for liquid water to be stable in our lakes, rivers and oceans. However, as the Sun ages, ...

If we landed on Europa, what would we want to know?

(Phys.org) —Most of what scientists know of Jupiter's moon Europa they have gleaned from a dozen or so close flybys from NASA's Voyager 2 spacecraft in 1979 and NASA's Galileo spacecraft in the mid-to-late 1990s. Even in ...

Bacteria manipulate salt to build shelters to hibernate

For the first time, Spanish researchers have detected an unknown interaction between microorganisms and salt. When Escherichia coli cells are introduced into a droplet of salt water and is left to dry, bacteria manipulate ...

Can organisms survive on Mars, and can we identify them?

Earth is a very special planet. It is the only celestial body in the solar system on which we know life exists. Could there be life on other planets or moons? Mars is always the first mentioned in this context; it has many ...

Ether compounds could work like DNA on oily worlds

In the search for life beyond Earth, scientists have justifiably focused on water because all biology as we know it requires this fluid. A wild card, however, is whether alternative liquids can also suffice as life-enablers. ...

Detecting DNA in space

If there is life on Mars, it's not too farfetched to believe that such Martian species may share genetic roots with life on Earth.

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