OpportunityBox
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OpportunityBox

An open-source directory of conferences, workshops, trainings, fellowships, volunteer positions, and calls for papers from around the world, with deadlines, funding info, and application links in one place.

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  • Fellowships
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One email a week: new opportunities + deadlines closing soon.

MIT licensed · Created by S M Asif Hossain · Built by the community, for the community

Explore opportunities

36 open opportunities worldwide, updated continuously.

Training
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CERN Summer Student Programme

Spend the summer at CERN in Geneva working on an advanced technical project with international research teams. Includes lectures by leading scientists, lab visits, and a vibrant student community. Open to bachelor's and master's students in physics, computing, and engineering.

Geneva, SwitzerlandFully fundedDue Oct 2, 2026
Training
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ROSES25: A.13 Accelerating Earth Solutions

ROSES25: A.13 Accelerating Earth Solutions, a US federal funding opportunity from NASA Headquarters (opportunity number NNH25ZDA001N-AES). See the official Grants.gov listing for eligibility, award amounts, and application instructions.

United StatesFully fundedDue Oct 15, 2026
Training
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FY26 Bureau of Land Management Youth Conservation Corps - Bureau wide

FY26 Bureau of Land Management Youth Conservation Corps - Bureau wide, a US federal funding opportunity from Bureau of Land Management (opportunity number L26AS00064). See the official Grants.gov listing for eligibility, award amounts, and application instructions.

United StatesFully fundedDue Oct 16, 2026
Training
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ROSES25: A.14 Atmosphere

ROSES25: A.14 Atmosphere, a US federal funding opportunity from NASA Headquarters (opportunity number NNH25ZDA001N-ATMOS). See the official Grants.gov listing for eligibility, award amounts, and application instructions.

United StatesFully fundedDue Oct 20, 2026
Training
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ROSES25: D.8 Habitable Worlds Observatory Precursor Science Investigation

ROSES25: D.8 Habitable Worlds Observatory Precursor Science Investigation, a US federal funding opportunity from NASA Headquarters (opportunity number NNH25ZDA001N-HWOPSI). See the official Grants.gov listing for eligibility, award amounts, and application instructions.

United StatesFully fundedDue Oct 26, 2026
Training
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ROSES25: A.15 Biosphere

ROSES25: A.15 Biosphere, a US federal funding opportunity from NASA Headquarters (opportunity number NNH25ZDA001N-BIOS). See the official Grants.gov listing for eligibility, award amounts, and application instructions.

United StatesFully fundedDue Nov 6, 2026
Training
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ROSES25: C.4 Planetary Science Enabling Facilities

ROSES25: C.4 Planetary Science Enabling Facilities, a US federal funding opportunity from NASA Headquarters (opportunity number NNH25ZDA001N-PSEF). See the official Grants.gov listing for eligibility, award amounts, and application instructions.

United StatesFully fundedDue Nov 10, 2026
Training
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ROSES 2025: C.2 Solar System Science

ROSES 2025: C.2 Solar System Science, a US federal funding opportunity from NASA Headquarters (opportunity number NNH25ZDA001N-SCUBED). See the official Grants.gov listing for eligibility, award amounts, and application instructions.

United StatesFully fundedDue Nov 12, 2026
Training
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Major Research Instrumentation Program

Major Research Instrumentation Program, a US federal funding opportunity from U.S. National Science Foundation (opportunity number 23-519). See the official Grants.gov listing for eligibility, award amounts, and application instructions.

United StatesFully fundedDue Nov 16, 2026
Training
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ROSES 2025: A.4 Rapid Response and Novel Research in Earth Science

ROSES 2025: A.4 Rapid Response and Novel Research in Earth Science, a US federal funding opportunity from NASA Headquarters (opportunity number NNH25ZDA001N-RRNES). See the official Grants.gov listing for eligibility, award amounts, and application instructions.

United StatesFully fundedDue Dec 31, 2026
Training
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Tribal Undergraduate to Graduate Research Training and Leadership Experiences (TURTLE) Program (UE5/T34)

Tribal Undergraduate to Graduate Research Training and Leadership Experiences (TURTLE) Program (UE5/T34), a US federal funding opportunity from National Institutes of Health (opportunity number PAR-24-236). See the official Grants.gov listing for eligibility, award amounts, and application instructions.

United StatesFully fundedDue Jan 25, 2027
Training
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Tribal Undergraduate to Graduate Research Training and Leadership Experiences (TURTLE) Program (UE5/T32)

Tribal Undergraduate to Graduate Research Training and Leadership Experiences (TURTLE) Program (UE5/T32), a US federal funding opportunity from National Institutes of Health (opportunity number PAR-24-235). See the official Grants.gov listing for eligibility, award amounts, and application instructions.

United StatesFully fundedDue Jan 25, 2027
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