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From the first announcement of its discovery in the atmosphere of Mars in 2003, methane has “punched above its weight” in our scientific imagination of the red planet. Because methane is quickly destroyed by the current chemistry active on Mars, it has to be supplied in the present day by some as yet unknown process. On the Earth, it is living systems that produce the abundant methane that we see in our atmosphere.

Just over one hundred years ago Albert Einstein revealed the Theory of General Relativity and one of its predictions, the existence of gravitational waves. It took astronomers 100 years to first observe these mysterious waves, confirming Einstein’s theory. Now that they have, it has opened up an entirely new way to see the Universe, including objects that had not been seen before, like black holes.

Ever wonder what that bright object is in the night sky? From dying stars to shooting stars, there are many astronomical phenomena which have long inspired curiosity, fear, and awe.

Over 4000 exoplanets have been discovered to date—but what do we really know about them, and how do we know it? Join Emily Deibert in exploring the main methods and missions that have been used to discover the diverse population of exoplanets throughout our Galaxy, and learn about some of the most extraordinary exoplanets we've found so far. She will also discuss how astronomers are starting to learn about what conditions on these exoplanets might be like, and highlight some of the advances we hope to make in the field over the next few years.

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