asteroid,

Asteroid spotted past Neptune and no one knows how it got there

There is an asteroid near Neptune which should not be there. Most space rocks float in a belt between Mars and Jupiter, and this is one of the first asteroids that has actually traveled across three gas giants and settled in the far outer reaches of the Solar System. May 10, 2018
Air pollution

Carbon dioxide reached the highest level in recorded history

The planet is getting warmer and one of the reasons for this is the release of greenhouse gasses like carbon dioxide that trap heat in the atmosphere. Carbon dioxide is the most prevalent among all greenhouse gases and it has just reached its highest recorded level. May 6, 2018
nasa, exoplanet, Jupiter, space,

Helium spotted in a comet like exoplanet for the first time

The planet is so close to its host star that the atmosphere is getting ripped off and pushed out, making it look like a comet with a long tail of gases pointing away from the star and it has helium in an excited state, making it possible to spot in the IR wavelength. May 3, 2018
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