The New Map Of The Milky Way Shows 1.7 Billion Stars
Editorials News | May-10-2018
Nearly 1.7 billion stars have been plotted in unprecedented detail with highly anticipated release of data from the European Space Agency's Gaia spacecraft. The $1 billion (750 million euros) Gaia spacecraft launched in 2013 for a five-year mission to map the night sky with unmatched accuracy.
The spacecraft is placed far beyond the moon's orbit, in the Lagrange-2, or L2, point, a gravitationally stable spot about 1 million miles (1.5 million kilometers) away from Earth. Unlike space telescopes such as Hubble that orbit the Earth, Gaia can scan the cosmos without Earth blocking a large chunk of its view.
As it rotates in space, Gaia measures about 100,000 stars each minute and covers the whole sky in about two months. Each star is measured 70 times on an average. Gaia launched in 2013, and released their first batch of data in September 2016. Those data included distances and motions of roughly 2 million stars; the new data up that number to 1.3 billion.
The Gaia mission also examines the brightness, colors and surface temperatures of some stars, and the amount of space dust between us and them. Looking beyond stars, the data includes the positions of over 14,000 asteroids. While 1.7 billion stars may be hard to wrap your head around, NASA says scientists estimate there are at least 100 billion stars (and maybe as many as 400 billion) in the Milky Way alone.
By: Swati Kaushal
Content: https://www.sciencenews.org/article/star-map-gaia-spacecraft-milky-way?tgt=nr
Related News
- The Impact of Urbanization on Biodiversity Conservation
- Purchasing with Heart: Mindful Purchase Decisions
- The Global Impact of Microfinance: Small Loans, Big Dreams
- Investing in Impact: Financing for a Better Society
- Heroes Challenging Ocean Waste: Plastic Crusaders
- Power to the People: Community Renewable Initiatives
- Techno Titans: Advances Boosting the Green Sector
- Advocates of Change: Movements for Social Change
- Eco Escapes: Touring Diligently, preserving Paradise
- The Transformative Power of Creative Therapy: Art Heals
Most popular news
- The Law Of Equivalent Exchange
- Essay On Issues And Challenges Of Rural Development In India
- Srinivasa Ramanujan And His Inventions
- The Youth Is The Hope Of Our Future!
- Poverty In India: Facts, Causes, Effects And Solutions
- Top 20 Outdoor Games In India
- Festivals Of India: Unity In Diversity
- Role Of Women In Society
- The Impact Of Peer Pressure On Students' Academic Performance
- Books As Companion