Eight per cent leakage of Lyman continuum photons from a compact, star-forming dwarf galaxy.

One of the key questions in observational cosmology is the identification of the sources responsible for ionization of the Universe after the cosmic 'Dark Ages', when the baryonic matter was neutral. The currently identified distant galaxies are insufficient to fully reionize the Universe by redshift z ≈ 6 (refs 1-3), but low-mass, star-forming galaxies are thought to be responsible for the bulk of the ionizing radiation. As direct observations at high redshift are difficult for a variety of reasons, one solution is to identify local proxies of this galaxy population. Starburst galaxies at low redshifts, however, generally are opaque to Lyman continuum photons. Small escape fractions of about 1 to 3 per cent, insufficient to ionize much surrounding gas, have been detected only in three low-redshift galaxies. Here we report far-ultraviolet observations of the nearby low-mass star-forming galaxy J0925+1403. The galaxy is leaking ionizing radiation with an escape fraction of about 8 per cent. The total number of photons emitted during the starburst phase is sufficient to ionize intergalactic medium material that is about 40 times as massive as the stellar mass of the galaxy.

Cosmic design from a Buddhist perspective.

The Buddhist view of the origin of the universe is discussed. One of the basic tenets of Buddhism is the concept of interdependence which says that all things exist only in relationship to others, and that nothing can have an independent and autonomous existence. The world is a vast flow of events that are linked together and participate in one another. Thus there can be no First Cause, and no creation ex nihilo of the universe, as in the Big Bang theory. Since the universe has neither beginning nor end, the only universe compatible with Buddhism is a cyclic one. According to Buddhism, the exquisitely precise fine-tuning of the universe for the emergence of life and consciousness as expressed in the "anthropic principle" is not due to a Creative Principle, but to the interdependence of matter with flows of consciousness, the two having co-existed for all times.