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Four people doing yoga in field.

Mensch Illustration Totenkopf

Earth from space. Computer illustration showing the Earth as viewed from space centred over Europe.

Woman wearing a sunhat

Two young men with digital tablet

Mature man holding a trophy.

Mother and daughter in bed

Mother carrying daughter on beach

Woman having photo taken

Woman having her eyes tested.

Young woman holding apple with heart

Senior woman and care worker smiling towards each other.

Senior woman and daughter holding pot plant.

Young couple in a car

A chemical solution being tested in a laboratory.

Man holding digital tablet in front of woman's face.

Caterpillar of the False Apollo (Archon apollinus) butterfly. Photographed in Israel in March.

Father pouring orange juice at breakfast

Female patient having eye examination in optometrist's shop close-up.

Senior woman looking through binoculars.

MODEL RELEASED. Oil refinery workers and pipework.

Selenocysteine (Sec U) amino acid molecule. Called the 21st proteinogenic amino acid present in selenoproteins. Atoms are represented as spheres with conventional colour coding: hydrogen (white) carbon (grey) oxygen (red) nitrogen (blue) selenium (orange).

Four people running on track in woods.

Tooth decay. Computer illustration of a tooth with a cavity and a close-up view of the bacteria that cause caries formation.

Young woman inhaling steam

Two female surgeons looking towards camera personal perspective.

Pregnant woman holding alarm clock

Woman paying with credit card in optometrist's shop.

Young woman holding nicotine gum

halten Illustration Roboter

Frau nehmen Temperatur

Optometrist writing prescription in optometrist's shop.

Female scientist testing foods in the laboratory.

Child eating pancake

Bedaquiline tuberculosis drug. Diarylquinoline antibacterial used in treatment of mycobacterium tuberculosis infections. Chemical formula is C32H31BrN2O2. Atoms are represented as spheres: carbon (grey) hydrogen (white) nitrogen (blue) oxygen (red). Illustration.

Four people doing yoga in field.

Amyl nitrite molecule. Used in treatment of angina and as a recreational drug. Chemical formula is C5H11NO2. Atoms are represented as spheres: carbon (grey) hydrogen (white) nitrogen (blue) oxygen (red). Illustration.

Synephrine herbal stimulant molecule. Present in several Citrus species. 3D rendering. Atoms are represented as spheres with conventional colour coding: hydrogen (white) carbon (black) oxygen (red) nitrogen (blue).

Senior man in hospital gown in wheelchair smiling.

Senior Senioren Kopfhörer Kleidung

Irinotecan cancer chemotherapy drug molecule. Stylized skeletal formula (chemical structure).

Senior woman looking at sight test chart with help of magnifying glass.

Senior man holding badminton rackets smiling.

Care worker holding senior woman's hands.

Paracetamol (Acetaminophen) drug molecule. Chemical formula is C8H9NO2. Atoms are represented as spheres: carbon (grey) hydrogen (white) nitrogen (blue) oxygen (red). Illustration.

Senior man with smartphone covering eye.

TCDD polychlorinated dibenzodioxin pollutant molecule (commonly called dioxin). Byproduct formed during incineration of chlorine-containing materials. Atoms are represented as spheres with conventional colour coding: hydrogen (white) carbon (grey) oxygen (red) chlorine (green).

Mother watching children in the kitchen

Woman stretching in sports wear

Illustration

Portrait of cheerful young woman having eye examination in optometrist's shop close-up.

Mid adult woman having eye test.

Melatonin hormone molecule. In humans it plays a role in circadian rhythm synchronization. Atoms are represented as spheres with conventional colour coding: hydrogen (white) carbon (grey) oxygen (red) nitrogen (blue).

Mensch CD compact disc

Woman exercising on wall

Internet pornography

Uric acid molecule. High blood levels lead to gout disease. Atoms are represented as spheres with conventional colour coding: hydrogen (white) carbon (grey) oxygen (red) nitrogen (blue).

Woman jumping mid air

Light bulb with science illuminated artwork.

Pregnant woman with heart shape on tummy

Optician putting glasses on senior man.

Senior man rubbing face.

Four people walking in grass with walking poles.

Pregnant woman with heart shape on tummy

Artesunate malaria drug molecule. Chemical formula is C19H28O8. Atoms are represented as spheres: carbon (grey) hydrogen (white) oxygen (red). Illustration.

Optometrist performing eye test in optometrist's shop close-up.

Man having his eyes tested.

Overhand Knot.

Acetylsalicylic acid (aspirin) pain relief drug molecule. Aspirin is a drug that is used for its pain relieving fever reducing and anti-inflammatory properties. Chemical formula is C9H8O4. Atoms are represented as spheres: carbon (grey) hydrogen (white) oxygen (red). Illustration.

Care worker holding senior man's hand.

Young woman sitting cross legged on yoga mat.

Acetylcysteine (NAC) mucolytic drug molecule used to treat paracetamol overdose. Chemical formula is C5H9NO3S. Atoms are represented as spheres: carbon (grey) hydrogen (white) nitrogen (blue) oxygen (red) sulphur (yellow). Illustration.

Senior man having his eyes tested.

MODEL RELEASED. Scientist viewing a sample under a microscope in a laboratory.

Father playing with daughter

Young woman with laptop eating sandwich.

Senior woman knitting.

Young woman preparing healthy food in kitchen.

Optometrist performing eye test of young woman.

Seashells on the Mediterranean sea shore.

Portrait of girl trying glasses in optometrist's shop.

Senior woman having eye exam by optometrist.

Chemistry student using multi pipette.

Female scientist holding pill in tweezers.

Hydroxytyrosol olive oil antioxidant molecule. Stylized skeletal formula (chemical structure): Atoms are shown as color-coded circles: hydrogen (hidden) carbon (grey) oxygen (red).

Mature woman wearing bicycle helmet senior man assisting.

Woman trying on glasses in optometrist's shop in front of mirror.

Portrait of girl trying glasses in optometrist's shop.

Three people running in field.

Sodium hypochlorite (NaOCl) molecule. Aqueous solution is known as (liquid) bleach. Atoms are represented as spheres with conventional colour coding: chlorine (green) oxygen (red) sodium (purple).

SDSS 1557 is a binary star system 1000 light-years away consisting of a white dwarf orbiting a brown dwarf. Astronomers have found that the system is surrounded by a narrow disc or ring rich in rocky and metallic elements which they suggest are in the process of coming together (accreting) to form new planets. It's the first time evidence of rocky planet formation has been seen in a binary star system.