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  2. List of unsolved problems in astronomy - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    Since 2003, Jean-Pierre Luminet, et al., and other groups have suggested that the shape of the universe may be the Poincaré dodecahedral space. Is the shape unmeasurable, the Poincaré space, or another 3-manifold? Cosmic inflation: Is the theory of cosmic inflation in the very early universe correct? If so, what are the details of this epoch?

  3. Pioneer anomaly - Wikipedia

    en.wikipedia.org/wiki/Pioneer_anomaly

    The Pioneer anomaly, or Pioneer effect, was the observed deviation from predicted accelerations of the Pioneer 10 and Pioneer 11 spacecraft after they passed about 20 astronomical units (3 × 10 9 km; 2 × 10 9 mi) on their trajectories out of the Solar System.

  4. South Atlantic Anomaly - Wikipedia

    en.wikipedia.org/wiki/South_Atlantic_Anomaly

    The strength of Earth's magnetic field, as of 2020 (10 −9 T)The South Atlantic Anomaly (SAA) is an area where Earth's inner Van Allen radiation belt comes closest to Earth's surface, dipping down to an altitude of 200 kilometres (120 mi).

  5. Risk of falling space junk impacting planes is growing ...

    www.aol.com/news/risk-falling-space-junk...

    The risk will only grow as space debris remains in orbit, the study authors warned. Trackable objects in orbit have doubled in the last decade. The number of daily flights has also nearly doubled ...

  6. Anomaly - Wikipedia

    en.wikipedia.org/wiki/Anomaly

    Spatial anomaly, an extraordinary disruption in the space-time continuum in the Star Trek universe; The Fortean anomaly, in the work of Charles Fort; The Tycho Magnetic Anomaly (TMA) on the Moon in the novel and in the film 2001: A Space Odyssey by Sir Arthur C. Clarke and Stanley Kubrick; Entities in the SCP universe, often referred to as ...

  7. Flyby anomaly - Wikipedia

    en.wikipedia.org/wiki/Flyby_anomaly

    An empirical equation for the anomalous flyby velocity change was proposed in 2008 by J. D. Anderson et al.: [12] = (⁡ ⁡), where ω E is the angular frequency of the Earth, R E is the Earth radius, and φ i and φ o are the inbound and outbound equatorial angles of the spacecraft.

  8. Lunar swirls - Wikipedia

    en.wikipedia.org/wiki/Lunar_swirls

    Lunar Reconnaissance Orbiter Wide Angle Camera image of Reiner Gamma Another view of Reiner Gamma swirls Mare Ingenii Swirls east of Firsov crater, from Apollo 10. Lunar swirls are enigmatic features found across the Moon's surface, which are characterized by having a high albedo, appearing optically immature (i.e. having the optical characteristics of a relatively young regolith), and (often ...

  9. 50 Times People Found Such Strange Things On Google ... - AOL

    www.aol.com/76-times-people-found-strange...

    One place where you can do this is the popular ‘Google Earth, Structures and Anomalies’ group on Fa 50 Times People Found Such Strange Things On Google Earth, They Had To Share Them (New Pics ...