What are some current mysteries in astronomy?

Protected Personally Identifiable Information (Protected PII) means PII (see definition ... National Radiological Astronomy Observatory, Green Bank, West Virginia. Apr 13, 2022 ... Important information about NSF's implementation of the revised 2 CFR. NSF Financial Assistance awards (grants and cooperative agreements) made ... Mar 1, 2020 ... This definition of Entropy is fully consistent with Boltzmann's and Gibbs' considerations, being also called Boltzmann-Gibbs-Shannon entropy in ... PNNL advances the frontiers of knowledge, taking on some of the world's greatest science and technology challenges. It may further be defined by the portion of the colon ... Please understand that UOAA is a private, nonprofit, advocacy and informational organization. The even distribution means that dark energy does not have any local gravitational effects, but rather a global effect on the universe as a whole. This leads to ... Māmane trees are endemic to Hawaiʻi, meaning they are only found on the Hawaiian islands. ... The Onizuka Center for International Astronomy Visitor Information ... This brochure activity can serve as a great mini-research activity for kids to do as part of a unit on astronomy, or as an enrichment activity. Astronomy is the study of everything in the universe beyond Earth's atmosphere. That includes objects we can see with our naked eyes, like the Sun, the Moon, ... In physics, this means that two properties of an object, such as its ... The state of one object in that system can't be fully described without information on ...