1607 in science

Astronomy

• Johannes Kepler records the appearance and motion of a comet, later to be known as Comet Halley.

  Medicine

• Giovanni Antonio Magini defends the use of astrology in medicine in his .

  Technology

• Howitzers are invented, by a Frenchman.

  Zoology

• Edward Topsell's bestiary The Historie of Foure-Footed Beasts is published in London by William Jaggard.

  Births

• between 31 October and 6 December – Pierre de Fermat, French mathematician

  Deaths

• 6 January – Guidobaldo del Monte, Italian mathematician
• 28 June – Domenico Fontana, Italian architect
• 22 August – Bartholomew Gosnold, English explorer and privateer
• Georg Bartisch, German physician and ophthalmologist