Mars covered in toxic chemicals that can wipe out living organisms, tests reveal

Mars is bathed in ultra violet light which turns the Martian soil sterile. Photograph: Reuters

Discovery has major implications for hunt for alien life on the red planet as it means any evidence is likely to be buried deep underground

The Story of Rockets (Part-1) : How we got to Moon

It was 1919. Robert Goddard had released his research paper titled – “A Method of Reaching Extreme Altitudes”. In this paper, he had claimed that a liquid powered rocket had enough potential to take objects along with it to space, and go as far as the moon. The New York Times, on 13th January 1920,… Continue reading The Story of Rockets (Part-1) : How we got to Moon

Zeno's Paradox: Would Physics be able to solve it?

Zeno of Elea (c. 495 – c. 430 BC) was a pre-Socratic Greek philosopher of Magna Graecia and a member of the Eleactic School founded by Parmenides. Aristotle called him the inventor of the dialectic He is best known for his Paradoxes, which Bertrand Russell described as “immeasurably subtle and profound”.

Saturn's rings – and moons – might be younger than the dinosaurs

Saturn Rings

We determined Saturn’s gravitational field by reconstruction of Cassini’s trajectory during the Grand Finale, using a coherent microwave link between Earth tracking stations and the spacecraft. Range-rate measurements were obtained from the Doppler shift of a carrier signal sent from the ground at 7.2 GHz (X-band) and retransmitted back to Earth by Cassini’s onboard transponder at 8.4 GHz. An auxiliary downlink at Ka-band (32.5 GHz) was also recorded.

Nasa shortlists four astrophysics missions for 2025 launch

The Andromeda galaxy, the nearest spiral galaxy to the Milky Way.

NASA has shortlisted four proposals for its next astrophysics missions, due for launch in 2025. The agency has funding to fly two of them, and the four will now each receive funds for a nine-month period of technical study. The two missions will be chosen next year.

Biggest cosmic explosion ever detected left huge dent in space

Galaxy clusters are among the largest structures in the universe, containing thousands of individual galaxies, dark matter and hot gas. At the heart of the Ophiuchus cluster there is a large galaxy that contains a supermassive black hole with a mass equivalent to 10 millions suns.

Deconstructing Schrödinger's cat

The paradox of Schrödinger’s cat—the feline that is, famously, both alive and dead until its box is opened—is the most widely known example of a recurrent problem in quantum mechanics: its dynamics seem to predict that macroscopic objects (like cats) can, sometimes, exist simultaneously in more than one completely distinct state. Many physicists have tried to solve this paradox over the years, but no approach has been universally accepted. Now, however, theoretical physicist Franck Laloë from Laboratoire Kastler Brossel (ENS-Université PSL) in Paris has proposed a new interpretation that could explain many features of the paradox. He sets out a model of this possible theory in a new paper in EPJ D.

Image: 'Pale Blue Dot' revisited

The picture, named “The Pale Blue Dot” was obtained on 14th February, 1990, moments before the camera and the several other instruments of the Voyager were powered off for conservation of battery, since the probe wouldn’t make a close flyby past any other objects during their lifetime.