Forward scattering is the deflection of waves by small angles so that they continue to move in close to the same direction as before the scattering. It can occur with all types of waves, for instance
Saturn eclipses the Sun, as seen from the Cassini space probe. The forward scattering of light makes the faint outer rings more visible.
Wave diffraction at the Blue Lagoon, Abereiddy
Diffraction is the deviation of waves from straight-line propagation due to an obstacle or through an aperture, without any change in their energy. Diffraction is the same physical effect as interfere
Forward scatter
…Forward scattering is the deflection of waves by small angles so that they continue to move in close to the same direction as before the scattering. It can occur with all types of waves…
The diffraction pattern (Airy disc) of a red laser beam projected onto a plate after passing through a small circular aperture in another plate
Single-slit diffraction in a circular ripple tank
Diffraction pattern from a square aperture
Optical diffraction pattern