Comets spread Earth-life around galaxy, say scientists
...th and the Solar system go round the centre of the galaxy every 240 million years, this viable bacterial out...hey suggest, the transfer of Earth life across the galaxy is inevitable. These ideas are discussed in detail in two papers appearing in the current issue of ...Launch of Ariadna to boost advanced space research in Europe
...lar highway in which spacecraft journey across the galaxy using the delicate gravitational balance between neighbouring stars? These are just some of the imaginative, futuristic concepts that will be studied in the first call for proposals issued under a new European Space Agency (ESA) initiative named Aria...Physics tip sheet #21 July 10, 2002
...sume that they are coming from sources outside our galaxy but relatively little is known conclusively. A com...Rs come and the distribution of objects within our galaxy shows a correlation between UHECRs and spun-up pulsars (pulsars spinning at high speeds) that is bet...Physics tip sheet #4 March 13, 2002
...ue: March 15, 2002) Most pulsars move through the galaxy at about 450 km/s, about 9 times faster than the average star. A proposed explanation for the higher speeds is that gravitational waves emitted at the pulsars births involve a huge amount of energy and cause considerable recoil. If this proposed mech...Alien life forms more likely to be found outside solar system, says Colorado prof.
...eb. 14 to Feb. 19. Signs of life elsewhere in the galaxy or universe may be "co-occurring, non-equilibrium gases like oxygen and methane, an indication the gases are being replenished," said Pace. This most readily could be explained by the influence of life. And should intelligent life out there be loo...Krauss book explores universe from oxygen atom's perspective
...e again, the atom wanders throughout the Milky Way galaxy for eons before it once again finds itself swept u...for space objects, either sending them outside the galaxy into the Oort Cloud beyond or as a barrage of matter to Earth or other inner planets in the solar sy......tor that such life also might be widespread in the galaxy and the universe. "But you need to have a vast am...tend, the solar system's position in the Milky Way galaxy also is key to life development on Earth. At the edge of the galaxy, many stars are too metal-poor f...