A mission to a Martian moon could return with alien life, according to experts, but don’t expect the invasion scenario presented by summer blockbusters like “Men in Black 3″ or “Prometheus.” A sample from the moon Phobos, scientists believe, would almost surely contain Martian material blasted off from large asteroid impacts. If life on Mars exists or existed within the last 10 million years, a mission to Phobos could yield our first evidence of life beyond Earth.
The fastest moving pulsar may have been found about 30,000 light years from Earth. This object is known as IGR J1104-6103 and may be racing away from a supernova remnant at about 6 million miles per hour. If confirmed, this would challenge theorists to create models that explain such super speeds out of supernova explosions.
New research has demonstrated that people who ate more dietary vitamin B12 and animal protein had lower levels of arsenic (measured by deposition in toenails). Total dietary fat, animal fat, vegetable fat and saturated fat were also all associated with lower levels of arsenic, while omega 3 fatty acids, such as those found in fish oil, were associated with increased arsenic.
The rhesus macaque has three times as much genetic variation as humans. However despite much of this extra variation within genes, protein function is not affected. Consequently damaging variations are at similar levels in macaques and humans — indicating a strong selection pressure to maintain gene function regardless of mutation rate or population size.