Astronomers deliver first photo of black hole

Astronomers on Wednesday unveiled the first photo of a black hole, one of the star-devouring monsters scattered throughout the Universe and obscured by impenetrable shields of gravity.

Red Crucifix sighting in 774 may have been supernova

(Phys.org) -- A supernova may have actually been the mysterious "Red Crucifix" in the sky that is cited in the Anglo Saxon Chronicle for the year 774. New correspondence between a university student and Nature carries interesting ...

The Edge of a Black Hole

The existence of black holes is one of the most amazing and bizarre predictions of Einstein's theory of gravity. Despite his original misgivings about their reality, massive black hole holes are today believed to lie at the ...

The atmospheres of water worlds

There are currently about fifty known exoplanets with diameters that range from Mars-sized to several times the Earth's and that also reside within their stars' habitable zone – the orbital range within which their surface ...

Does dark matter cause mass extinctions and geologic upheavals?

Research by New York University Biology Professor Michael Rampino concludes that Earth's infrequent but predictable path around and through our Galaxy's disc may have a direct and significant effect on geological and biological ...

Meteorite minerals hint at earth extinctions, climate change

A huge asteroid that wiped out the dinosaurs may not have been the only cosmic event to cause mass extinctions or change Earth's climate. Tiny minerals leftover from many smaller meteorites could provide the geological evidence ...

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