Your galaxy has a supermassiv black hole - so does mine as does every large galaxy. But how did they grew so big is a matter of speculation. Einstein predicted gravitational waves; ripples in space-…

You wouldn't think the brightest exploding stars ever discovered in the universe could need some light shed on them, but they got it anyway. A new paper proposes that the most luminous supernovae –…

Researchers have found evidence that magnetic waves in a polar coronal hole contain enough energy to heat the corona and that they also deposit most of their energy at sufficiently low heights for…

The Toby Jug Nebula, formally known as IC 2220, is an example of a reflection nebula - a cloud of gas and dust illuminated from within by a star called HD 65750.  The Toby Jug Nebula is located…

Unusual impact craters formed on Mars feature a thin outer deposit that extends many times beyond the typical range of ejecta. Nadine Barlow, professor of physics and astronomy at Northern Arizona…

This special edition of the Space Show may be of special interest if you read my recent science20.com articles about Mars and space colonization. I was asked great questions by David Livingston, and…

This is part 5 of my series on Mars, planet of surprises, great to explore, not so great to colonize. It seems that a human mission to the surface of Mars significantly increases the risk of…

The nearby star system Fomalhaut has been discovered to be not just a double star, as astronomers had thought, but a really wide triple star -   a previously known smaller star in its vicinity…

Supposing we do eventually decide to terraform Mars, and know how to do it, will it be possible at all if humans visit the surface of Mars first? Could aerobes and other microbes introduced by…

This is part 3 of my series on Mars, planet of surprises, great to explore, not so great to colonize. In "Is it as good a place to live as a desert? we saw that Mars is a more inhospitable place…