FLO4572657: Uniform of a state messenger under the Directory. Each councilor had four messengers who wore white tunic, blue coat and hat with tricolor plumes. Handcoloured lithograph from Le Bibliophile Jacob aka Paul Lacroix's Costumes Historique de la France (Historical Costumes of France), Administration de Librairie, Paris, 1852. / Bridgeman Images
FLO4572718: Marie Louise, Empress of France, Duchess of Parma, second wife to Napoleon Bonaparte 1791-1847. Handcoloured lithograph from Le Bibliophile Jacob aka Paul Lacroix's Costumes Historique de la France (Historical Costumes of France), Administration de Librairie, Paris, 1852. / Bridgeman Images
FLO4572733: Francois Charles Joseph Napoleon, King of Rome, son of Napoleon and Marie Louise 1811-1832. Wearing the sash of the Legion d'honneur and riding In a miniature carriage. Handcoloured lithograph from Le Bibliophile Jacob aka Paul Lacroix's Costumes Historique de la France (Historical Costumes of France), Administration de Librairie, Paris, 1852. / Bridgeman Images
PIX4572735: Artist's view of a white dwarf - White dwarf - artwork - Artist's view of a white dwarf, a star at the end of life that did not explode in supernova. Around her, her gas ejects forms a planetary nebula. A white dwarf is a dying star which will not become a supernova, like our sun, but ejects gaz around it to make a planetary nebula / Bridgeman Images
PIX4572784: Artist's view of a pulsar and its companion star - A pulsar and its companion - A pulsar is a neutron star endowed with a magnetic field that rotates on it - even extremely quickly and emits beams of light and radio waves. A pulsar is a neutron star, highly magnetized, rotating very quickly which emits a beam of detectable radiation in the form of radio waves / Bridgeman Images
PIX4572795: Binary pulsar and gravitational waves - Artist's impression of the pulsar PSR J0348+0432 and its white dwarf companion - Artist's view of a gravitational wave generated by a system of a neutron star associated with a white dwarf, spreading on the fabric of space - time. This artist's impression shows the exotic double object that consists of a tiny, but very heavy neutron star that spins 25 times each second, orbited every two and a half hours by a white dwarf star. The neutron star is a pulsar named PSR J0348+0432 that is giving off radio waves that can be picked up on Earth by radio telescopes. Although this unusual pair is very interesting in its own right, it is also a unique laboratory for testing the limits of physical theories. This system is radiating gravitational radiation, ripples in spacetime. Although these waves (shown as the grid in this picture) cannot be yet detected directly by astronomers on Earth they can be sensed indirectly by measuring the change in the orbit of the system as it loses energy. As the pulsar is so small the relative sizes of the two objects are not drawn to scale / Bridgeman Images
FLO4572807: Joachim Murat, King of Naples, Marshal of France 1767-1815. Handcoloured lithograph by Leopold Massard from Le Bibliophile Jacob aka Paul Lacroix's Costumes Historique de la France (Historical Costumes of France), Administration de Librairie, Paris, 1852., Massard, Leopold (1812-1889) / Bridgeman Images
PIX4572829: Artist view of a magnetar - Magnetar - Artist view - Artist view of an eruption of X-rays and gamma from a magnetar, a neutron star endowed with a powerful magnetic field. Artist's concept of a burst of X - rays and gamma released by a magnetar, a neutron star with an extremely powerful magnetic field, Dixon, Don (b.1951) / Bridgeman Images
FLO4574591: Venus flytrap, Dionaea muscipula, and trembling or telegraph plant. Handcoloured copperplate engraving from Bertuch's “” Bilderbuch fur Kinder”” (Picture Book for Children), Weimar, 1798. Friedrich Johann Bertuch (1747-1822) was a German publisher and man of arts most famous for his 12-volume encyclopedia for children illustrated with 1,200 engraved plates on natural history, science, costume, mythology, etc., published from 1790-1830. / Bridgeman Images
FLO4574615: Boa constrictor and emerald tree boa. Handcoloured copperplate engraving from Bertuch's “” Bilderbuch fur Kinder”” (Picture Book for Children), Weimar, 1798. Friedrich Johann Bertuch (1747-1822) was a German publisher and man of arts most famous for his 12-volume encyclopedia for children illustrated with 1,200 engraved plates on natural history, science, costume, mythology, etc., published from 1790-1830. / Bridgeman Images
FLO4574631: Balm of Peru, Myroxylum peruiserum 1, and elemi gum tree, Amyris elemisera 2. Handcoloured copperplate engraving from Bertuch's “” Bilderbuch fur Kinder”” (Picture Book for Children), Weimar, 1798. Friedrich Johann Bertuch (1747-1822) was a German publisher and man of arts most famous for his 12-volume encyclopedia for children illustrated with 1,200 engraved plates on natural history, science, costume, mythology, etc., published from 1790-1830. / Bridgeman Images
FLO4574760: Threads of Dutch linen 1 and gold 2 magnified under a microscope. Handcoloured copperplate engraving from Bertuch's “” Bilderbuch fur Kinder”” (Picture Book for Children), Weimar, 1798. Friedrich Johann Bertuch (1747-1822) was a German publisher and man of arts most famous for his 12-volume encyclopedia for children illustrated with 1,200 engraved plates on natural history, science, costume, mythology, etc., published from 1790-1830. / Bridgeman Images
FLO4574812: Hairy stapelia (hairy stapelia), Stapelia hirsuta 1, and sensitive plant (Mimosa modica), Mimosa pudica 2. Handcoloured copperplate engraving after Henriette Dorothea Westermayr from Friedrich Johann Bertuch's Bilderbuch fur Kinder (Picture Book for Children), Weimar, 1798. / Bridgeman Images
FLO4574817: Danube gudgeon (stud), Gobio gobio 1, bleak (ablette), Alburnus alburnus 2, spirlin (ablette spirlin), Alburnoides bipunctatus 3, minnow (minnow), Phoxinus phoxinus 4, and Prussian carp (carassin argente), Carassius gibelio 5. Handcoloured copperplate engraving from Friedrich Johann Bertuch's Bilderbuch fur Kinder (Picture Book for Children), Weimar, 1798. / Bridgeman Images
FLO4574832: Cow tongue under the microscope: veal tongue showing different papillae 1, foliate papilla 2, filiform papillae 3, and fungiform papillae 4. Handcoloured copperplate engraving from Friedrich Johann Bertuch's Bilderbuch fur Kinder (Picture Book for Children), Weimar, 1798. / Bridgeman Images
FLO4574857: American alligator (American alligator), Alligator mississippiensis 1, and gavial or gharial (Ganges gavial), Gavialis gangeticus 2, critically endangered. Handcoloured copperplate engraving from Friedrich Johann Bertuch's Bilderbuch fur Kinder (Picture Book for Children), Weimar, 1798. / Bridgeman Images
PIX4574966: South pole of Jupiter seen by Juno - Jupiter South Pole seen by Juno spacecraft: View of the south pole of Jupiter obtained at 52,000 km altitude by the Juno probe. Bright masses of oval shape are visible, they are huge hurricanes with a diameter of up to 1000 km. Combination of several clicks. This image shows Jupiter's south pole, as seen by Nasa's Juno spacecraft from an altitude of 32,000 miles (52,000 kilometers). The oval features are cyclones, up to 600 miles (1,000 kilometers) in diameter. Multiple images taken with the JunoCam instrument on three separate orbits were combined to show all areas / Bridgeman Images
FLO4575002: Mourning cloak (Morio), Nymphalis antiopa 1, European peacock (peacock of the day), Inachis io 2, and red admiral (Vulcain), Vanessa atalanta 3, butterfly, caterpillar and pupa. Handcoloured copperplate engraving from Friedrich Johann Bertuch's Bilderbuch fur Kinder (Picture Book for Children), Weimar, 1802. / Bridgeman Images
FLO4575003: Death's head hawk-moth (sphinx head of death), Acherontia atropos 1, and eyed hawk-moth (sphinx demi peacock), Smerinthus ocellatus 2, moth, caterpillar and pupa. Handcoloured copperplate engraving from Friedrich Johann Bertuch's Bilderbuch fur Kinder (Picture Book for Children), Weimar, 1802. / Bridgeman Images
FLO4575076: Atlantic salmon, Salmo salar 1, tuna, Thunnus species 2, Atlantic herring, Clupea harengus 3, and Atlantic mackerel (mackerel), Scomber scombrus 4. Handcoloured copperplate engraving from Friedrich Johann Bertuch's Bilderbuch fur Kinder (Picture Book for Children), Weimar, 1792. / Bridgeman Images
FLO4575090: English horse-racing scene, 18th century. Jockeys with whips on thoroughbred horses races before a crowd of spectators and carriages. Handcoloured copperplate engraving after Friedrich Kaiser from Friedrich Johann Bertuch's Bilderbuch fur Kinder (Picture Book for Children), Weimar, 1802. / Bridgeman Images
FLO4575110: Fumarole or sulphuric gases escaping from Solfatare volcano near Naples, Italy - Fumarole or sulphuric gases escaping from Solfatara volcano near Naples. Handcoloured copperplate engraving by J.B. Hoessel from Friedrich Johann Bertuch's Bilderbuch fur Kinder (Picture Book for Children), Weimar, 1802. / Bridgeman Images
FLO4575137: Longnose gar (bone lepisost), Lepisosteus osseus 1, suckermouth catfish (Common pleco), Hypostomus plecostomus 2, Raphael catfish (platydoras), Platydoras costatus 3 and spotted catfish (Corydoras marble), Corydoras punctatus 4. Handcoloured copperplate engraving from Friedrich Johann Bertuch's Bilderbuch fur Kinder (Picture Book for Children), Weimar, 1802. / Bridgeman Images