The Darwin Core data standard is widely used to share 
  biodiversity information, most notably by the Global Biodiversity Information 
  Facility and its partner nodes; but converting data to this standard can be 
  tricky. 'galaxias' is functionally similar to 'devtools', but with a focus on 
  building Darwin Core Archives rather than R packages, enabling data to be 
  shared and re-used with relative ease. For details see 
  Wieczorek and colleagues (2012) <doi:10.1371/journal.pone.0029715>.

Collection of packages for work with API 'Google Ads' <https://developers.google.com/google-ads/api/docs/start>, 
    'Yandex Direct' <https://yandex.ru/dev/direct/>, 'Yandex Metrica' <https://yandex.ru/dev/metrika/>, 
    'MyTarget' <https://target.my.com/help/advertisers/api_arrangement/ru>, 'Vkontakte' <https://vk.com/dev/methods>, 
    'Facebook' <https://developers.facebook.com/docs/marketing-apis/> and 'AppsFlyer' <https://support.appsflyer.com/hc/en-us/articles/207034346-Using-Pull-API-aggregate-data>. 
    This packages allows you loading data from ads account and manage your ads materials.

Calculate, plot and animate the configuration of Jupiter's four
    largest satellites (known as Galilean satellites) for a given date and time
    (UTC - Coordinated Universal Time).
    The galsat() function returns numerical values of the satellites’ positions.
    x – the apparent rectangular coordinate of the satellite with respect to the
    center of Jupiter’s disk in the equatorial plane in the units of Jupiter’s
    equatorial radius; X is positive toward the west,
    y – the apparent rectangular coordinate of the satellite with respect to the
    center of Jupiter’s disk from the equatorial plane in the units of Jupiter’s
    equatorial radius; Y is positive toward the north.
    For more details see Meeus (1988, ISBN 0-943396-22-0) "Astronomical Formulae
    for Calculators".
    The galsat_animate() function creates an animation of the Galilean
    satellites' positions. You provide the starting time, duration, the time
    step between frames, and the pause between frames.
    The function delta_t() returns the value of delta-T in units of seconds.