April 13-16 — Horizon 2020 EURO-CARES WP3 Meeting: Designing a European Extraterrestrial Sample Curation Facility, Vienna, Austria
April 14 — Colloquium: Time-dependent Global MHD Studies of the Solar Wind Interaction with Mars, Tucson, Ariz.
April 14 — Lecture: Stellar Forensics with Explosions – Supernovae, Gamma-Ray Bursts, and their Environments, Ithaca, N.Y.
April 14-15 — ESA Space Technology Workshop, Leeuwenhorst, The Netherlands
April 15 — Lecture: Volatile Reservoirs in the Outer Solar System, Houston, Texas
April 15 — Lecture: Astronomy From the Bottom of the Earth – Telescopes at the South Pole, Pasadena, Calif.
April 17-21 — 1st Mexican AstroCosmoStatistics School: Bayesian Inference for Cosmology, Leon, Mexico
April 17-22 — European Geosciences Union General Assembly 2016, Vienna, Austria
April 17-29 — 1st International School/Workshop on Crystallography for Space Sciences, Puebla, Mexico
April 18-19 — Conference: 11th Annual Military Space Situational Awareness, London, United Kingdom
April 18-19 — 2016 Land-Cover/Land-Use Change Spring Science Team Meeting, Bethesda, Md.
April 18-20 — Meeting: NASA Science Mission Extensions — Scientific Value, Policies, and Review Process, Washington, D.C.
April 18-21 — 13th INTEGRAL/BART Workshop, Karlovy Vary, Czech Republic
April 18-22 — 4th Session of the Sant Cugat Forum on Astrophysics: Workshop on Young Solar Systems, Barcelona, Spain
April 18-22 — Conference: Star Clusters as Cosmic Laboratories for Astrophysics, Dynamics and Fundamental Physics, Bologna, Italy
April 19 — Colloquium: Mercury’s Complex Exosphere – What Have We Learned From MESSENGER?, Tucson, Ariz.
April 19-22 — 8th European Workshop on Thermal Protection Systems and Hot Structures, Noordwijk, The Netherlands
April 19-24 — 26th International Conference Radioelektronika, Kosice, Slovakia
April 20 — Lecture: The Twisted Universe – Constraints on Parity Violation within the CMB, Mountain View, Calif.
April 20 — Colloquium: Particle Physics, the Large Hadron Collider, and Beyond, Greenbelt, Md.
April 20-21 — MuSLI Science Team Meeting, Bethesda, Md.
Apr 20-21 -[Apr 09] 3rd Fermi-Veritas-HAWC Meeting, Salt Lake City, Utah
April 20-22 — 4th High Level Forum on United Nations Global Geospatial Information, Addis Ababa, Ethiopia
April 21 — Colloquium: The (Bio?)Geochemistry of Enceladus’ Ocean, Ithaca, N.Y.
April 21 & 22 — Lecture: CubeSats — Big Goals, Tiny Package, Pasadena, Calif.
April 21-22 — The Asteroid-Meteorite Connection Workshop, Los Angles, Calif.
April 22-24 — International Space Apps Challenge, Pasadena, Calif.
April 25 — Lecture: Special Collections — How Tucson Mapped the Way to the Moon and Planets, Tucson, Ariz.
April 25 — Webinar: SHERLOC — On the Trail of Potential Biosignatures on Mars
April 25 — Lecture: Cosmological Results from Planck, Ithaca, N.Y.
April 25-28 — Conference: From Star and Planet Formation to Early Life, Vilnius, Lithuania
April 25-28 — Workshop: What Shapes Galaxies?, Baltimore, Md.
April 25-28 — 2nd Workshop on Stratospheric Sulfur and its Role in Climate, Potsdam, Germany
April 25-28 — Defense and Aerospace Test and Telemetry Summit, National Harbor, Md.
April 25-29 — Annual NewCompStar Conference 2016, Istanbul, Turkey
April 25-30 — 23rd Young Scientists’ Conference on Astronomy and Space Physics, Kyiv, Ukraine
April 26 — Lecture: The SOFIA Observatory – Revealing the Hidden Universe with Airborne Science, Mountain View, Calif.
April 26 — Lecture: Astrophysical Signatures of Axions, Trieste, Italy
April 26-27 — Space Studies Board Spring Meeting, Washington, D.C.
April 26-28 — CERES Spring 2016 Science Team Meeting, Hampton, Va.
April 26-28 — Event: Space 2.0, Silicon Valley, Calif.
April 26-29 — Conference: Escape of Lyman Fadiation from Galactic Labyrinths, Kolymbari, Crete, Greece
April 27 — Square Kilometre Array Industry Day, London, United Kingdom
April 27 — Lecture: Keeping an Eye on the Universe — The Hubble Servicing Missions, London, United Kingdom
April 27 — Lecture: From Outer Space to the Lab — Exploring Lunar and Asteroid Soils, Tucson, Ariz.
April 27-28 — Neutrino — Latin American Workshop, Batavia, Ill.
April 27-29 — 2016 AfriGEOSS Symposium: Earth Observations for the Africa We Want, Victoria Falls, Zimbabwe
April 28 — Lecture: Juno Mission at Jupiter Preview, Houston, Texas
April 28 — Lecture: The Baryon Content of Dark Matter Halos, Ithaca, N.Y.