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We Could Find Aliens Any Day Now, SETI Scientists Say

ET phone Earth! We could be on the verge of answering one of the essential questions of humanity...

New Mars Colony Mission Crowdfunds its Way to the Red Planet

MarsPolar, a newly created international venture has started raising funds for their...

Paving Way for Mars Colonization

In order to send first human to Mars, plenty of pioneering activities must be taken. It’s a journey...

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Tomasz Nowakowski RSS Feed of this column.

Tomasz Nowakowski is a freelancer who writes about astronomy, spaceflight and space exploration. He is the founder and editor-in-chief of astrowatch... Read More »

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Astronomers have discovered an asteroid called 2014 OL339, that is the latest quasi-satellite of Earth – a space rock that orbits the sun but is close enough to Earth to look like a companion.

Our planet has one permanently bound satellite - the Moon, but also a likely large number of mini-moons or transient irregular natural satellites, and temporary natural retrograde satellites or quasi-satellites.