When starlight passes through a cloud of oxygen atoms, specific wavelengths are absorbed, creating dark lines in the spectrum. These high-energy particles would quickly break apart any stable O2 molecule floating freely in the void.
Observing Interstellar Medium Oxygen Atoms in Cosmic Clouds
Observations from powerful telescopes like the Hubble Space Telescope and the Herschel Space Observatory have confirmed the existence of oxygen atoms in distant nebulae, stellar winds, and the atmospheres of planets and moons within our own solar system. While the Martian atmosphere is 95% carbon dioxide, trace amounts of oxygen gas have been detected by robotic missions.
The Challenge of Breathing Our own cosmic backyard provides tangible proof of oxygen's presence beyond Earth. These lines act as a barcode, revealing the presence and quantity of oxygen.
Observing Interstellar Medium Oxygen Atoms in Cosmic Clouds
The vacuum of space is filled with intense solar radiation and cosmic rays. More surprisingly, the Jovian moon Europa and the Saturnian moon Enceladus are believed to possess subsurface oceans.
More About Is oxygen in space
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