Search space history

8 matching records

1. 1610 416 years ago

   Galileo begins observations of Jupiter’s moons

   Category: Discoveries and Scientific Results › Type: Discovery

   Galileo observed points of light near Jupiter that subsequent observations established as orbiting moons.

2. 1781 245 years ago

   Uranus discovered

   Category: Discoveries and Scientific Results › Type: Discovery

   William Herschel observed the object subsequently recognized as the planet Uranus.

3. 1801 225 years ago

   Ceres discovered

   Category: Discoveries and Scientific Results › Type: Discovery

   Giuseppe Piazzi discovered Ceres, the first recognized asteroid and now classified as a dwarf planet.

4. 1846 180 years ago

   Neptune discovered

   Category: Discoveries and Scientific Results › Type: Discovery

   Johann Galle observed Neptune after its position had been predicted from planetary-motion calculations.

5. 1933 93 years ago

   Jansky’s cosmic radio discovery publicized

   Category: Discoveries and Scientific Results › Type: Discovery

   A New York Times report brought Karl Jansky’s detection of radio emission from the Milky Way to public attention.

6. 2017 9 years ago

   Neutron-star merger observations announced

   Category: Discoveries and Scientific Results › Type: Discovery

   Researchers announced gravitational-wave and electromagnetic observations associated with GW170817.

7. 2019 7 years ago

   First black hole image released

   Category: Discoveries and Scientific Results › Type: Discovery

   The Event Horizon Telescope collaboration released an image of the shadow around M87’s central black hole.

8. 2022 4 years ago

   Sagittarius A* image released

   Category: Discoveries and Scientific Results › Type: Discovery

   The Event Horizon Telescope collaboration presented an image of the Milky Way’s central black hole.