Matias Zaldarriaga is an Argentine astrophysicist born in 1971 in Buenos Aires, known for his work in cosmology, particularly the Cosmic Microwave Background (CMB). He studied physics at the University of Buenos Aires and earned his Ph.D. from MIT. Zaldarriaga has held various prestigious academic positions, including professorships at Harvard and the Institute for Advanced Study. He is renowned for developing CMBFAST software and has made significant contributions to understanding the early universe, gravitational lensing, and the polarization of CMB, participating in numerous international observational programs.
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Sunsign, Tropical Zodiac
Zodiac Sign (Vedic)
Moonsign, Sidereal Zodiac
Age (Today)
Your next birthday is 245 days away.
Place of Birth
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Meaning of the name - Matias
Gift of God
Read Full Matias Name AnalysisFebruary 20, 1971 Facts
Generation Group
Matias Zaldarriaga belongs to the Generation X group.
Place of Birth: Coghlan, Buenos Aires
Educated At: University of Buenos Aires | Massachusetts Institute of Technology
Occupation: astrophysicist | astronomer
Employers: Institute for Advanced Study | Princeton University
Awards Received: Helen B. Warner Prize for Astronomy | Gribov Medal | MacArthur Fellows Program | Packard Fellowship for Science and Engineering | Fellow of the American Academy of Arts and Sciences | Gruber Prize in Cosmology
Astrology Analysis
Note: This birth chart is calculated using the date and place of birth, with the time set to noon (12:00 PM) local time. While this provides accurate planetary positions for most celestial bodies, the Ascendant (Rising Sign) and house cusps are not calculated since they require precise birth time. For a complete astrological analysis including houses and rising sign, please provide the exact birth time.

Ephemeris for February 20, 1971
Note: Moon position is location and time sensitive.Planet | Position (Tropical, Western) | Transits on February 20, 2025 | Secondary Progressions for February 20, 2025 |
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Sun | 1 Pisces 24 | 2 Pisces 18 | 25 Aries 4 |
Moon | 27 Sagittarius 54 | 1 Sagittarius 51 | 20 Sagittarius 30 |
Mercury | 20 Aquarius 19 | 11 Pisces 29 | 1 Taurus 59 |
Venus | 16 Capricorn 53 | 9 Aries 11 | 20 Pisces 27 |
Mars | 17 Sagittarius 54 | 17 Cancer 5 | 20 Capricorn 8 |
Jupiter | 4 Sagittarius 52 | 11 Gemini 43 | 5 Sagittarius 27 |
Saturn | 17 Taurus 1 | 19 Pisces 37 | 22 Taurus 9 |
Uranus | 13 Libra 6 | 23 Taurus 28 | 10 Libra 59 |
Neptune | 3 Sagittarius 1 | 28 Pisces 35 | 2 Sagittarius 37 |
Pluto | 29 Virgo 3 | 2 Aquarius 39 | 27 Virgo 39 |
Rahu | 23 Aquarius 16 | 28 Pisces 48 | 20 Aquarius 24 |
Ketu | 23 Leo 16 | 28 Virgo 48 | 20 Leo 24 |
Chandra Kundali (Equal House, North Indian Diamond Chart)

Astrology Transits Analysis for Year 2025
Note: Multiple transits occurring in close proximity often signify a major event in a person's life.Matias Zaldarriaga's 2025 Transits to Natal Planets
- Mars aspects Sun
Exact: 01 January, 2025 - Mars aspects Rahu
Exact: 21 January, 2025 - Saturn sextile Saturn
Exact: 31 January, 2025 - Mars aspects Mercury
Exact: 31 January, 2025 - Saturn square Mars
Exact: 10 February, 2025 - Mars opposition Venus
Exact: 02 March, 2025 - Mars aspects Mercury
Exact: 22 March, 2025 - Mars aspects Rahu
Exact: 01 April, 2025 - Jupiter opposition Mars
Exact: 11 April, 2025 - Mars aspects Sun
Exact: 21 April, 2025 - Jupiter trine Mercury
Exact: 01 May, 2025 - Saturn square Moon
Exact: 11 May, 2025 - Jupiter trine Rahu
Exact: 11 May, 2025 - Mars opposition Mercury
Exact: 31 May, 2025 - Jupiter opposition Moon
Exact: 31 May, 2025 - Mars opposition Sun
Exact: 20 June, 2025 - Jupiter trine Sun
Exact: 20 June, 2025 - Jupiter opposition Venus
Exact: 29 August, 2025 - Saturn square Moon
Exact: 18 September, 2025 - Mars opposition Saturn
Exact: 18 October, 2025 - Mars square Sun
Exact: 07 November, 2025