1610 in science

The year 1610 in science and technology involved some significant events.

• January 7 – Galileo Galilei first observes the four large Galilean moons of Jupiter: Ganymede, Callisto, Europa and Io, although he is unable to distinguish the latter two until the following night. In the same year he publishes his first observations by telescope in a short treatise entitled Sidereus Nuncius ("Sidereal Messenger").
• December – English scientist Thomas Harriot becomes one of the first to view sunspots through a telescope
• The Orion Nebula is discovered by Nicolas-Claude Fabri de Peiresc.

• Diphtheria epidemic in Naples, during which Marco Aurelio Severino performs successful tracheotomies.

• Jean Beguin publishes Tyrocinium Chymicum, the first book of chemistry lectures.
• Tinsel is invented by a German silversmith, who uses real silver for the metal strands.
• Bagels are created in Kraków, Poland and given as gifts to women after childbirth.

• February 2 – Pierre Bourdelot, French physician, anatomist, freethinker, abbé and libertine (died 1685)
• Maria Cunitz, Silesian astronomer (died 1664)
• Marie Meurdrac, French chemist and alchemist (died 1680)

• Abul Qasim ibn Mohammed al-Ghassani, Moroccan physician (born 1548)
• Nikola Vitov Gučetić, Ragusan polymath (born 1549)
• Peter Lowe, Scottish surgeon (born c. 1550)
• Paarangot Jyeshtadevan Namboodiri, Keralan mathematician and astronomer (born c. 1500)
• December 31 – Ludolph van Ceulen, German mathematician (born 1540)