Category Archives: Exoplanets

Water Water Everywhere

Earth isn't the only planet with water – we just need to know where to look.

Earth isn’t the only planet with water – we just need to know where to look.

Everyone knows that Earth is a “water-world,” with oceans covering 71% of its surface and at least as much contained within our planet’s mantle deep below its crust. But there’s also liquid water to be found elsewhere in the Solar System: on Mars, on the dwarf planets Ceres and Pluto, and also on the icy moons of Jupiter, Saturn, and Neptune.

NASA is on the hunt for this water, for the main reason that it’s the key ingredient for the evolution of Earth-type life. Where liquid water exists, if there are organic molecules and energy sources as well then the stage is set for life having evolved independently of Earth. And if we can find that that’s the case somewhere, anywhere else in the Solar System, then that would be a huge – no, make that giant – step toward answering the Big Question: are we alone in the Universe?

Today NASA scientists held a conference about the search for oceans beyond Earth, and how we are currently and plan to find out where and how much is (or even was) out there. An infographic accompanied the press materials released.

“What we’re finding out is that the Solar System really is a soggy place.”

– Dr. Jim Green, NASA’s Planetary Science Director

Check out the full infographic below, along with a video of the conference.

Read the rest of this entry

Astronomers Identify an Exoplanet in the Process of Formation

Illustration of the young massive star HD100546 and its surrounding disk (P. Marenfeld & NOAO/AURA/NSF)

Illustration of the young massive star HD100546 and its surrounding disk. Click here for more information. (P. Marenfeld & NOAO/AURA/NSF)

Here at Lights In The Dark I typically keep the articles and information to exploration occurring within our Solar System. But there have been amazing advances in the discovery of worlds far beyond our own family of planets and this recent news is quite fascinating: astronomers have spotted what appears to be a large gaseous exoplanet in the process of formation around a star only 335 light-years away — literally one of our own cosmic neighbors! Not only is this serendipitous, but also provides insight to how the planets and moons in our own Solar System may have formed, 4.6 billion years ago.

Read the rest of this entry

Earth-Sized Alien Planet Found Around the Stars Next Door

Artist’s impression of a planet discovered orbiting Alpha Centauri B, a member of the triple star system that is the closest to Earth. Our Sun is visible to the upper right. (ESO/L. Calçada)

These days it seems exoplanets are being discovered nearly every week, with “super-Earths”, “hot Jupiters” and “cold Neptunes” being identified (or at least announced as solid candidates) within star systems all around our neck of the galaxy. To top it all off, today the European Southern Observatory announced that an Earth-mass world has now been found orbiting Alpha Centauri B — quite literally the “star next door.”

Read the rest of this entry

Follow

Get every new post delivered to your Inbox.

Join 26,349 other followers

%d bloggers like this: