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Alpha helical coiled-coil illustration
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Crescent Nebula NGC6888 is an emission nebula in the Cygnus constellation
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Saturn Lyman-alpha bulge HST image
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North America nebula
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Illustration of a cytochrome c oxidase enzyme from the mitochondria of a cows heart in fully oxidized state Cytochrome molecules perform oxidation a
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Lactic acid molecular model
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Lactic acid molecular model
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Alpha-linolenic acid molecular model
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Alpha-linolenic acid molecular model
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Sojourner View of the Mars Pathfinder robotic rover vehicle Sojourner during assembly This rover vehicle landed on Mars on 4 July 1997 It weighs
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Alpha-methylfentanyl molecular model
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Alpha-methylfentanyl molecular model
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Alpha helix illustration
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Alpha helix illustration
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Alpha helix illustration
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Hydrogen gas clouds in Orion Nebula
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Planetary nebula IC 5148
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Alpha-pinene terpene molecular model
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Avapritinib cancer drug molecule illustration
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Sojourner Mars Pathfinder mosaic image of the robotic Sojourner vehicle on the surface of Mars analysing the rock known as Barnacle Bill (at upper
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Avapritinib cancer drug molecule illustration Atoms are represented as spheres with conventional colour coding hydrogen (white) carbon (grey) nit
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Guanabenz antihypertensive drug molecule illustration
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Large Magellanic Cloud
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Omega nebula (M17)
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Starfield in constellations of Cygnus and Cepheus
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Starry sky seen between the constellations of Cygnus (bottom right) and Cepheus (centre and top left) The brightest star at bottom right is Deneb (al
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North America nebula and Pelican nebula optical image The North America nebula (left) is named so due to its similar shape to the continent The hyd
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Rho Ophiuchi nebulosity optical image These coloured regions are clouds of dust and gas surrounding bright stars lying around 500 light years from
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North America Nebula Optical image of the North America Nebula (NGC 7000) in the constellation Cygnus the swan North is at top This nebula (red j
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Sojourner View of the Mars Pathfinder robotic rover vehicle Sojourner during assembly This rover vehicle landed on Mars on 4 July 1997 It weighs
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Emission nebula IC 4606 Optical image of the large emission nebula IC 4606 (pink) around the star Antares (Alpha Scorpii white area) Antares lies 5
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Sun in hydrogen alpha light
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Sun and Moon composite image The Sun and Moon appear to be roughly the same size when viewed from Earth Although the Sun is some 400 times wider th
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DNA loop Theoretical molecular model of a loop structure for DNA in its chromatin form DNA (deoxyribonucleic acid) is a helical molecule (here the h
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Energy scale Illustration of the energies involved in a range of events arranged along a logarithmic scale with values expressed in joules This sp
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Rhodospirillum rubrum SEM
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Parathyroid hormone molecule Computer model showing the structure of parathyroid hormone (PTH) or parathormone Atoms are colour-coded (carbon grey
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L-Alanine Molecular model of the amino acid L-alanine (C3H7NO2) Structurally an alpha amino acid L-alanine (the left-handed isomer of alanine) i
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Antiporter molecule Computer model showing the structure of a bacterial NaHantiporter with parallel alpha helices forming a center pore This memb
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Star Cluster NGC 2074 in the Large Magellanic Cloud A small portion of the nebula near the star cluster NGC 2074 (upper left) The region is a fires
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Antiporter molecule Computer model showing the structure of a bacterial NaHantiporter with parallel alpha helices forming a center pore This memb
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Rhodospirillum rubrum SEM
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Rhodospirillum rubrum SEM
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Rhodospirillum rubrum SEM
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Rhodospirillum rubrum SEM
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Molecular model of Pyrrolysine (C12 H21 N3 O3) a standard amino acid used in the synthesis of proteins for some archaea and metanogenic bacteria
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Molecular model of Pyrrolysine (C12 H21 N3 O3) a standard amino acid used in the synthesis of proteins for some archaea and metanogenic bacteria
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Molecular model of Pyrrolysine (C12 H21 N3 O3) a standard amino acid used in the synthesis of proteins for some archaea and metanogenic bacteria
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Computer artwork of the molecule of N-Formylmethionine a proteinogenic non-standard amino acid that plays a crucial part in the protein synthesis of
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Milky Way Optical image of the Milky Way galaxy centred on the dark Coal Sack Nebula North is at top The Coal Sack is a cloud of dust and gas that
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Computer artwork of the molecule of N-Formylmethionine a proteinogenic non-standard amino acid that plays a crucial part in the protein synthesis of
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N-formylmethionine amino acid molecule
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Aspartic acid amino acid molecule
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Aspartic acid amino acid molecule
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Aspartic acid amino acid molecule
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Arginine amino acid molecule
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Arginine amino acid molecule
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Arginine amino acid molecule
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Alanine amino acid molecule
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DNA molecule Computer graphic ball stick model representing a segment of the molecule Deoxyribonucleic Acid (DNA) This is the alpha form of DNA in
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Alanine amino acid molecule
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Alanine amino acid molecule
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Andromeda Galaxy (M31 NGC 224) composite image Andromeda the nearest large galaxy to our own is around 140000 light years across and located 2
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Protein alpha helix structure diagram
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Vitamin E Molecular model of alpha-tocopherol (C29H50O2) the most biologically active form of vitamin E Deficiency of this vitamin leads to neuro
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Tizanidine drug molecule
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Tamsulosin Molecular model of the drug tamsulosin (C20H28N2O5S) an alpha-1a-selective alpha blocker used for treating benign prostatic hyperplas
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Lactic acid molecule
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Cysteine molecule
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Map of atomic nuclides Three-dimensional representation of the known atomic nuclides or isotopes Atomic mass increases toward the bottom of the fra
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Aspartic acid molecule
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Arginine molecule
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alpha-Terpinene molecule
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alpha-Pinene Molecular model of the bicyclic monoterpene compound alpha-pinene (C10H16) This is classified as a hydrocarbon of a type known as a te
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Alanine molecule
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Ponatinib leukaemia drug molecule Computer model showing the structure of a molecule of the tyrosine-kinase inhibitor (TKI) ponatinib TKIs are the f
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Ponatinib leukaemia drug molecule Computer model showing the structure of a molecule of the tyrosine-kinase inhibitor (TKI) ponatinib TKIs are the f
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Alpha-amanitin toxin molecule Computer model showing the structure of a molecule of the mushroom toxin alpha-amanitin This toxin is an inhibitor of
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Alpha-amanitin toxin molecule Computer model showing the structure of a molecule of the mushroom toxin alpha-amanitin This toxin is an inhibitor of
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BTHIS PICTURE MAY NOT BE USED TO STATE OR IMPLY BROES ENDORSEMENT OF ANY COMPANY OR PRODUCT THIS PICTURE MAY NOT BE USED TO STATE OR IMPLY R
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Alpha-amanitin toxin molecule Computer model showing the structure of a molecule of the mushroom toxin alpha-amanitin This toxin is an inhibitor of
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Alpha-amanitin toxin molecule Computer model showing the structure of a molecule of the mushroom toxin alpha-amanitin Peptide bond planes are shown
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Alpha-amanitin toxin molecule Computer model showing the structure of a molecule of the mushroom toxin alpha-amanitin This toxin is an inhibitor of
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Solar prominences Close-up of the surface of the Sun showing eruptions of ionized plasma known as solar prominences These consist of plasma (ionise
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Solar prominence Close-up of the surface of the Sun showing an eruption of ionized plasma known as a solar prominence This consists of plasma (ioni
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Solar prominence
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Lactic acid and muscles molecular model
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Lactic acid and muscles Lactic acid (molecular models shown) is a carboxylic acid that is produced constantly in the body as part of normal metabolis
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Lactic acid molecular model
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Prion protein Computer artwork of part of a prion protein on a light micrograph of pyramidal nerve cells (neurones black) from the brain Prions des
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Lactic acid molecular model Lactic acid is a carboxylic acid that is produced constantly in the body as part of normal metabolism Excess lactic aci
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Rho Ophiuchi nebula
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Runaway star bow shock infrared image This glowing arc of hydrogen gas and dust is the bow shock formed by the runaway star Alpha Camelopardalis Th
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Fraunhofer lines diagram
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Iron-hydrogenase molecule Computer model showing the molecular structure of an iron-hydrogenase (FE-hydrogenase) enzyme from the Methanocaldococcus
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Lagoon Nebula (M8) optical image This nebula is an active region of star birth It glows red as radiation from hot newly formed stars ionises the s
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Great Orion Nebula
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Helix Nebula
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Swan and Eagle nebulae optical image These are both emisison nebulae clouds of gas and dust glowing red as the hydrogen gas is ionised by radiation
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Tumour necrosis factor-alpha (TNF-alpha) computer model Atoms are represented as spheres and are colour-coded carbon (grey) hydrogen (white) oxyg
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