Answer / guest

Recent measurements indicate that the expansion of the
universe is speeding up rather than slowing down. This
conclusion goes against the fundamental idea that gravity
is attractive. If these measurements hold up, they require
the presence of a form of matter dubbed "dark energy" whose
gravity is repulsive rather than attractive

Do all objects in the universe exert force on all other objects?

2 Answers  

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Are protons unstable?

1 Answers  

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Is a new theory of light and matter needed to explain what happens at very high energies and temperatures?

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What are some major characteristics of a pulsar?

1 Answers  

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What is dark matter?

1 Answers  

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what is the kepler's second law of planetary motion?

1 Answers   Google,

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what is the difference between monochromatic and chromatic aberrations?

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what is astigmatism?

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How to calculate an orbit at a given altitude?

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what is a geostationary satellite?what are its applications?

2 Answers   Geo Research Centre,

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what is coma?

1 Answers  

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What is dark energy?

1 Answers  

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