high energetic particles in the Sun, complementing results obtained with the Solar Submillimeter Telescope. In particular the still unexplained spectral inversion above ≈ 100 GHz. A possible experiment would be to make VLBI solar observations. For example, in a joint observation between LLAMA and some of the ALMA antennas, a spatial resolution of 0.001" would be achieved for λ ≈ 1 mm, corresponding to a distance of 700 m on the solar surface. Planets Extra-solar planetary systems around stars near the Sun. Proto-planetary disks in star located in the Solar neighborhood. Near-Earth objects. Stellar objects Star forming regions, young stellar objects, and mechanisms of the star formation. Non-thermal processes in stellar magnetospheres. Interaction of stars and remnants of supernova with the interstellar medium. Astrophysical jets and maser emission Astrophysical jets. Maser phenomena of the recombination lines of the hydrogen atom. Maser emission in star-forming regions. Maser emission in late stars stellar envelopes. Galactic and Intergalactic interstellar medium Continuum radiation from extragalactic cold dust. Molecular material in the direction of different stellar objects. Intergalactic Medium using the detection of molecular absorption lines in the direction of quasars. Cosmic background radiation. Galaxies Search for CO in galaxies with high redshift. Molecular abundance. Active Galactic Nuclei (AGN). Variation of the fundamental constants by the observation of gravitational lensing. High redshifts of regions with very high rate of star formation. Proto-clusters of galaxies. Space-time distortion produced by massive black holes. High energies Optics, Receivers The Nasmyth optics will allow the installation of up to as six different heterodyne receivers. There is a consensus for these receivers to use the same spectral bands as ALMA. With this scheme the Nasmyth cabins will allocate receivers for the bands It is intended to install a bolometer multi-wavelength camera at the Cassegrain focus, or possibly a camera plus a small heterodyne array. See also Atacama Large Millimeter Arraya, the biggest millimeter array ever built. Atacama Pathfinder Experiment (APEX), single dish sub-millimetre telescope built on a modified ALMA prototype antenna Atacama Submillimeter Telescope Experiment CARMA a sensitive millimetre-wave array operated by a consortium including Caltech, University of California Berkeley, University of Illinois, University of Maryland and University of Chicago Cosmic Background Imager a 13 element interferometer operating in Llano de Chajnantor since 1999. IRAM 30 Meter Telescope (Pico Veleta, Spain), the largest millimetric telescope in the world, operated by IRAM James Clerk Maxwell Telescope The most sensitive existing sub-millimetre