The Fifth Planetary Defense Interagency Tabletop Exercise focused on an asteroid impact scenario designed by NASA JPL’s Center for Near Earth Object Studies. It is highly unlikely that a large asteroid will hit Earth in the near future. But because the damage from such an event could be extensive, NASA conducts hypothetical asteroid impact “tabletop” … Read more
A recent study that poses new challenges to the existence of dark matter suggests that gravity can exist even in the absence of mass. Although all life on Earth experiences its effects every day, gravity remains one of the great mysteries of modern physics. Now, a new study published by Dr. Richard Lieu of the … Read more
This article was reviewed according to Science fact checked peer-reviewed publication trusted source proofread OK! Credit: CC0 Public domain × close to Credit: CC0 Public domain Dark matter is a hypothetical form of matter implied by gravitational effects that cannot be explained by general relativity unless there is more matter in the universe than we … Read more