SRON-astronomers have found the signature for aluminum oxide (AlO) in the spectrum of exoplanet WASP-43b. This came as a surprise because AlO is expected to stay hidden in the lower atmospheric layers. It is only the second time that astronomers have observed the molecule in an exoplanet’s atmosphere. The results are published in Astronomy & Astrophysics on July 1.
If you think planets like Mars or Jupiter are far away, try exoplanets. When you look up at the night sky and search for the closest exoplanet—an Earth-sized planet orbiting Proxima Centauri—you might as well look for the footprints on the moon. And that is only considering size; exoplanets are outshined by their host star about 1 billion times...
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