Månens faser under Maj
- 2021-05-03: Avtagande halvmåne
- 2021-05-11: Nymåne
- 2021-05-11: Månen längst från jorden (406500 km)
- 2021-05-19: Växande halvmåne
- 2021-05-26: Fullmåne
- 2021-05-26: Månen närmast jorden (357300 km)
- 2021-06-04: Avtagande halvmåne
Kvällshimlen under Maj
- 2021-05-03: Månen 4° söder om Saturnus
- 2021-05-03: Merkurius 2° söder om Pleiaderna (Alcyone)
- 2021-05-04: Månen 5° söder om Jupiter
- 2021-05-06: Eta Aquariderna i maximum
- 2021-05-10: Merkurius 8° norr om Aldebaran
- 2021-05-13: Månen 1° söder om Venus
- 2021-05-13: Månen 6° norr om Aldebaran
- 2021-05-13: Månen 2° söder om Merkurius
- 2021-05-16: Månen 1.5° norr om Mars
- 2021-05-17: Månen 3° söder om Pollux
- 2021-05-17: Merkurius i max östlig elongation
- 2021-05-19: Månen 5° norr om Regulus
- 2021-05-23: Månen 7° norr om Spica
- 2021-05-24: (704) Interamnia i opposition
- 2021-05-26: Månen 5° norr om Antares
- 2021-05-29: Merkurius 0.5° söder om Venus
- 2021-05-31: Månen 4° söder om Saturnus
Rymdfartshistoria under Maj
- 1989-05-04: Magellan, Cospar-ID 1989-033B
- 1961-05-05: Mercury Redstone 3, Cospar-ID MERCR3
- 1967-05-05: Ariel 3, Cospar-ID 1967-042A
- 2018-05-05: MARCO-B, Cospar-ID 2018-042C
- 2018-05-05: InSight, Cospar-ID INSIGHT
- 2018-05-05: MARCO-A, Cospar-ID 2018-042B
- 1965-05-09: Luna 5, Cospar-ID 1965-036A
- 1971-05-09: Mariner 8, Cospar-ID MARINH
- 2003-05-09: Hayabusa, Cospar-ID 2003-019A
- 2018-05-11: Bangabandhu-1, Cospar-ID 2018-044A
- 2009-05-14: Planck, Cospar-ID 2009-026B
- 2009-05-14: Herschel Space Observatory, Cospar-ID 2009-026A
- 1958-05-15: Sputnik 3, Cospar-ID 1958-004B
- 1960-05-15: Korabl-Sputnik 1, Cospar-ID 1960-005A
- 1963-05-15: Mercury-Atlas 9, Cospar-ID 1963-015A
- 1969-05-18: Apollo 10, Cospar-ID 1969-043A
- 1971-05-19: Mars 2, Cospar-ID 1971-045A
- 1978-05-20: Pioneer Venus Orbiter, Cospar-ID 1978-051A
- 2018-05-22: GRACE-FO 2, Cospar-ID 2018-047B
- 2018-05-22: GRACE-FO 1, Cospar-ID 2018-047A
- 1961-05-24: Explorer S45A, Cospar-ID EXS-452
- 1962-05-24: Mercury Atlas 7, Cospar-ID 1962-019A
- 1965-05-25: Pegasus 2, Cospar-ID 1965-039A
- 1958-05-28: Vanguard SLV 1, Cospar-ID VAGSL1
- 1962-05-28: Kosmos 5, Cospar-ID 1962-020A
- 1964-05-28: AS-101, Cospar-ID 1964-025A
- 1971-05-28: Mars 3, Cospar-ID 1971-049A
- 1966-05-30: Surveyor 1, Cospar-ID 1966-045A
- 1971-05-30: Mariner 9, Cospar-ID 1971-051A
Aktiviteter i Maj
- 2021-05-06: Varför försvinner antimaterien
- 2021-05-10: EU efter Brexit
- 2021-05-12: Galaxernas mörka hjärtan
Newsfeed
- 2021-04-27: Alma shows massive young stars forming in ’Chaotic Mess’
- 2021-04-26: Astronomers Detect New Chemical Signature in an Exoplanet’s Atmosphere using Subaru Telescope
- 2021-04-22: ALMA Discovers Rotating Infant Galaxy with Help of Natural Cosmic Telescope
- 2021-04-21: Record-breaking stellar flare from nearby star recordet in multipe wavelengths
- 2021-03-29: Stellar Eggs near Galactic Center Hatching into Baby Stars
- 2021-03-24: New Images Reveal Magnetic Structures Near Supermassive Black Hole
- 2021-03-18: Scientists Uncover Warehouse-Full of Complex Molecules Never before Seen in Space
- 2021-03-12: Astronomers Detect a Black Hole on the Move
- 2021-03-08: Most Distant Cosmic Jet Providing Clues About Early Universe
- 2021-03-05: A Giant, Sizzling Planet May be Orbiting the Star Vega
- 2021-02-26: The Distance to the North Polar Spur
- 2021-02-22: VLA Helps Astronomers Make New Discoveries About Star-Shredding Events
- 2021-02-20: Sounding Rocket CLASP2 Elucidates Solar Magnetic Field
- 2021-02-15: Comet or Asteroid: What Killed the Dinosaurs And Where Did it Come From?
- 2021-02-15: Flipped-Over Exoplanets Prove New Disk-Tilt Mechanism
- 2021-02-10: Record Breaking Distant Solar-System Object
2019-01-21 Blodmåne (Foto: Magnus Norden)
2014-11-25 Skymning över Brunnsviken (Foto: Magnus Norden)
2011-12-10 Månförmörkelse (Foto: Magnus Norden)